Are Catless Downpipes Bad

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The current one is 3" already, and I won't bother getting it unless I need to do something stupid like put a big turbo on or something. I've heard that you have to take the right side motor mount loose and jack the motor up 1 inch or so, is that true?. Definite seat of the pants improvement with the tune and downpipe. Speed Industry Is Your Shop for Extensive Aftermarket Parts For Subaru WRX | Toyota 86/BRZ EcoBoost RS- Las Vegas NV 702. ninesix · Registered. Increased exhaust velocity adds power, driving excitement, fuel economy and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. I just wanted to start this thread to see how everyone is doing with them installed. 4T-DOES NOT FIT 2016. $280 said and done, still much cheaper than any alternative. Chrysler decided to make the xpipe larger than the downpipes, then when they install them from the factory it crushes the X pipe down so much that you can't fit the proper size downpipe in there anymore and have to expand them and once you do that it makes it even harder to crush it back down for the factory pipe again. So it's really not too bad at all? My previous turbo Miata didn't run a cat at all and the stink was terrible. Following the restrictive downpipe section, the stock unit subjects the exhaust gases to the choking effec. I went with the catless, but it was too loud and smelled really bad (I only have the OEM resonator besides the cat in my exhaust). This car with the MTG Stage 1 tune and catless MPI downpipes hit the PBIR (Palm Beach International Raceway) dragstrip to set some times. Just got my Cruze back together and am looking to get some more HP and a bit more aggressive sound out of her. If you go catless the Cobb will suppress that alert and it won't appear on your dash, but if you read the errors in the Cobb it will still be there. This is a discussion on Catless Downpipe. Video: Fabspeed Catless Downpipe On GTS. 5l engine, the extra little bit of flow the catless exhaust offers can cause you to overboost/boost creep. 0 gti,turbo core's (chra), turbo chargers, turbine shafts, compressor wheels, turbo repair kits and perfor. Might take 3 to 4 weeks to get the down pipes shipped/fitted/dyno'ed. This is a service we provide free and for the members convenience - we're not responsible for any deals gone bad. Be the first to review “VW GOLF GTI Mk6 2. E88 135i with MHD stage 2+, VRSF catless downpipes, Pro Alloy intercooler, Forge diverter valves, VRSF induction kit, charge pipe, dark lines, MeisterR CRD+, Goodyear Assymetric 3's and Coolingmist stage 2 methanol kit. I used to own a VW TDI with the ALH diesel in it and it was straight piped. my girl doesnt like it. 5″ downpipe upgrade is THE best bang for the buck mod available for your N55 135i & 335i/xi. For everyone else: 1. I don't know what HP gain I got from that, but with a Dyno tune… I went from 237. sounds amazing. Do other peoples M5's that are catless smell this bad? *** Now when I say it smells bad, I mean that at a stop light, if the wind is blowing in the right direction and the windows are down, you get faceplanted with that sweet, yet overpowering exhaust smell. No matter what anyone tells you back pressure is always a bad thing. 0L TWIN TURBO: Exhaust Pipes & Tips - Amazon. Starting with the CAD designed investment-cast turbine outlet, made of 304 stainless steel for enduring corrosion resistance and reduced heat transfer to the engine bay. I've heard that you have to take the right side motor mount loose and jack the motor up 1 inch or so, is that true?. It not only gives you a boost in HP but also gives your car a more aggressive sound. com and affiliated sites. High flow cat vs catless. Catless Smell Experiences - posted in Power and Drivetrain: Hi All, So, emissions requirements aside, how does the GTR fare with going catless as far as smell is concerned? This may be subjective, just like exhaust sounds, but do folks find the increase in smell tolerable when driving on the street?. I wanted to know if anyone is running a Cobb tune with Catless dp. I made a quick video tonight, but its too cold to do anything decent so I will do another in the day light. But I will be. Ideal for high horsepower naturally aspirated and forced induction vehicles, the 3" diameter has netted the highest numbers on all of our forced induction. Is it safe to run a catless downpipe on Stage 2 MK7 Golf R? Sup guys, currently have a APR Stage 2 MK7 Golf R w/ the APR DSG tune with a Milltek non resonated non valved catback exhaust connected to an APR 3" cast downpipe. exhaust wrap downpipe bad? I just bought an IDparts downpipe and I'm thinking of wrapping it before install to keep the noise down. Installation is $1200. Be the first to review "Wagner Tuning BMW E82-E93 N55 Catless Downpipe Kit - 500001015" Cancel reply Your rating Rate… Perfect Good Average Not that bad Very poor. The sound difference is amazing. I have a catless downpipe on my Cobalt SS Turbo (K04 turbo). Needing more performance, MPG's and sound from your 2015 - 2019 2. I'm getting the same code, because of my catless downpipe. 00: 2011+ ZZP Buick Regal Turbo LHU Intake- NON GS MODEL $320. If you want the absolute maximum power available, go with catless. Your turbos will whistle way more with downpipes and an intake will also increase the whistle a little Harpreet Nijjar 5 лет назад +1. Report all suspicious sellers. This topic is highly debated. When we made our downpipe we did put a cat in it. I’ve installed over 8 sets and each of them slip in with one hand effort. Definite seat of the pants improvement with the tune and downpipe. Catless Downpipes vs. Catless Downpipe. I've read catless pipes are rather smelly, how is the smell sitting still?. Lowest price on Wagner 500001017 Downpipe Catless N55. So, why does a catless downpipe give your car a check engine light? In this case it would be my 2006 wrx. We are proud to introduce our VRSF 3″ Catless Downpipes for the S55 F80/F82/F87 M3, M4 and M2 Competition which are one of the only downpipes to feature a cast stainless steel v-band to pipe transition. Only bad part is that the tone of the exhaust isn't anything spectacular. The combination of the 3 is absolutely terrifying. downpipes for bmw 335i n54, flamingo vlei, gumtree classifieds south africa, 222425612. downpipes for bmw 335i n54 we stock a wide range of downpipes bmw n54,n55 nissan gt-r golf5 2. Full downpipe with turbo elbow, our down pipe not only replaces the stock cat pipe but also replaces the elbow coming off the turbo. 5" full exhaust and VRSF catless downpipes so it definately is a loud exhaust, and the burbles are pretty loud even just on soft. so im buying an ultimate racing downpipe uncatted soon and was wondering if it was safe to run open downpipe with this? should i get the midpipe and run it open from there? what do you guys think? and also what is the bad side to this. This 3" Overpipe/Downpipe Combo replaces both the overpipe and the downpipe, thereby opening up the connection between the header and the catback exhaust. 0T Decat See more like this CNT Racing catless resonated downpipe for 12-15 VELOSTER Turbo Brand New. Alpha Performance BMW M5/M6 Downpipes $ 1,699. 50 inch (63. cheap cats car. This topic is highly debated. There are exhausts with high flow cats which minimise the impact of a CAT. Hey everyone I am new here (obviously), I have a 2013 MP412C with a tune and catless downpipes/exhaust. Stage 2 map & catless downpipes @ Evolve I've listened to all the vids on you-tube but don't think you can actually tell how bad it would be in person so very. A must have mod for any "chipped" or "reflashed" vehicle to easily gain big HP and Torque. So, why does a catless downpipe give your car a check engine light? In this case it would be my 2006 wrx. 00: 2011+ ZZP Buick Regal Turbo LHU Intake- NON GS MODEL $320. 4T First Gen is one of the best exhaust mods you can do for p. W212 E63 AMG - Eurocharged tuned BMW M5 S63TU with catless downpipes vs. The sound is so mean with the catless test pipes. ER B58 downpipe is compatible with stock exhaust and all the aftermarket exhausts that use stock connections. The code comes up if the 2nd O2 snesors wave form is similar to the 1st O2 sensor (it should be a flat seldom changeing wave form). eBay Catless downpipe Hey guys anybody recommends an ebay catless downpipe??? I’ve always had good brands on my other cars but is honestly a piece of tube welded, probably the weldings are bad on the eBay ones???. Catted and catless relate to emissions if you do not have 2 cats somewhere in your exhaust you'll get a CEL. Because the catted downpipe uses a very high flowing catalytic converter, both the catted and the catless versions will improve exhaust flow and increase the power output of the FA20DIT WRX. skitsos, I've been reading more about catless downpipes, some people say that they are NOT good for automatic transmission cars, as they make to loose low end torque So I guess I will wait for a Downpipe with 200cell cat. A: The Cobb maps are made specifically for catted downpipes and we recommend getting a custom tune if you want a catless downpipe. but even with a proper tune and a catless downpipe, you will have 0 (Zero) issues with emissions unless there is a visual. I was worried about the smell but it isnt so bad i rarely smell it anymore. I believe even Pure turbo states that factory turbo's will smoke. I wanted to know if anyone is running a Cobb tune with Catless dp. Anything in regards to running these downpipes. It not only gives you a boost in HP but also gives your car a more aggressive sound. New Billet 16t Turbo+inlet Pipe+catless Downpipe For Bmw 135i 335i N54 Td04l. This Stainless steel catless downpipe is a direct bolt on for you MINI. I will be returning for much more, and have no issue recommending 8EightFab to any and all passionate Volvo owners I come across. Volume in cab hasnt changed. For instance an Evo 8 ran a full 3″ catless exhaust, with a extended the O2 bung it kept the sensor out of the flow of exhaust and with No CEL it passed emissions. I just got a 3'' catless downpipe from Punishment Racing and I'm planning on throwing it on tomorrow along with my 3. 5″ flange which allows an increase of flow. Designed to bolt directly to both the stock turbos and stock exhaust. Only bad part is that the tone of the exhaust isn't anything spectacular. VRSF 3″ High Flow Cast Stainless Steel Downpipes. i have a SSAC turbo back (was on the car when i bought it) it has resonated downpipes, no flex pipes, and uses the olive clamp things. 4t dart, how much power does a downpipe add to a 2013 dart, resonated downpipe for 2013 dart, rrm catted dp, should i get a catless downpipe or an catted downpipe for my 1. Obviously, there may have been bad pipes sold, but not enough to report as "bad" overall. Stainless steel exhaust downpipe to fit the Cooper S with the 1. Catless Smell Experiences - posted in Power and Drivetrain: Hi All, So, emissions requirements aside, how does the GTR fare with going catless as far as smell is concerned? This may be subjective, just like exhaust sounds, but do folks find the increase in smell tolerable when driving on the street?. So, why does a catless downpipe give your car a check engine light? In this case it would be my 2006 wrx. I have the Catless downpipes so I think someone on here had dyno'd somewhere around a 20bhp increase with gutted front Cats only so gutting them both has to do better plus the Miltek's are slightly larger diameter and have a slighlty better bend without the deep dimple that were on both or one of the OEM downpipes. Full downpipe with turbo elbow, our down pipe not only replaces the stock cat pipe but also replaces the elbow coming off the turbo. Eurocharged Performance, offers many different services in its exclusive and well maintained facilitates all around the world. 3" Turbo Catless Downpipe Exhaust For VW Golf GTi Jetta Audi A3 2. Be the first to review "Wagner Tuning BMW E82-E93 N55 Catless Downpipe Kit - 500001015" Cancel reply Your rating Rate… Perfect Good Average Not that bad Very poor. The sound difference is amazing. This is a service we provide free and for the members convenience - we're not responsible for any deals gone bad. Description. Email address already subscribed. Shop right now. Attempts at trolling or creating mischief ( starting flame wars over cambered vehicles ) will not be tolerated. A catless downpipe is an off-road use only product that deletes your primary catalytic converters and will typically yield a pretty serious gain in HP. Anything in regards to running these downpipes. Chrysler decided to make the xpipe larger than the downpipes, then when they install them from the factory it crushes the X pipe down so much that you can't fit the proper size downpipe in there anymore and have to expand them and once you do that it makes it even harder to crush it back down for the factory pipe again. The sound is so mean with the catless test pipes. The difference in power gains from a catless downpipe compared to a high flow catted downpipe are only a few horsepower. Just got my Cruze back together and am looking to get some more HP and a bit more aggressive sound out of her. I'm getting the same code, because of my catless downpipe. 4 Header; Bad Mab 2005-2010 Cobalt 2. If you don't already have a COBB Accessport, select the Accessport option above for a killer deal. Anyone know which downpipes are better in terms of performance or does it really make a difference? I mean It's a straight through pipe that. This item is not legal for use in California. It is offered with a limited lifetime warranty against defects and bad fitment. Everything from the basic bolt on to a monster street / strip car, we have what you are looking for!. With a 200 CEL it won't trigger the CEL 100%. 0T motor found on the ATS and CTS. 0T along side the downpipe for the FK8 2017 Civic Type-R. A downpipe is in the front of the exhaust system and a mid pipe (or intermediate pipe) is toward the end, between the catalytic converter and axleback or muffler section. This is a discussion on Catless Downpipe. Find Downpipes in Canada | Visit Kijiji Classifieds to buy, sell, or trade almost anything! New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in Toronto (GTA). 5" full exhaust and VRSF catless downpipes so it definately is a loud exhaust, and the burbles are pretty loud even just on soft. sounds amazing. Especially during cold start (that's when the wastegate is open). An adapter may be necessary if the catback does not use a 3 inch flange. 5L TFSI EVO (EA855) engine. bmw f10 550i n63 / n63tu 3″ catless downpipes Description Features: -Gain up to 43whp/48wtq -Full 3″ Construction -Enhanced Exhaust Note -304 Stainless Steel read more. But based on the responses above, you would have to think there was an effect. It's not like a bad coil or bad plug it's much worse idle that the car dies off. So it's really not too bad at all? My previous turbo Miata didn't run a cat at all and the stink was terrible. Plus who wants a brand new car that smells bad? Last edited by mSaLL150; 11-13-2012 at 11:56 AM. Discounts on Wagner Catless Downpipe BMW M235i. 5″ downpipe upgrade is THE best bang for the buck mod available for your N55 135i & 335i/xi. not sure, but I know an aftermarket / louder exhaust exaggerates the burbles. For everyone else: 1. This direct replacement pipe will deliver an aggressive exhaust note in your vehicle that will definitely get your Mustang the attention that it deserves!. = and would liek to install it. This one will stay stock unless something "tragic" happens to it. ninesix · Registered. This setup has worked very well, but I do think that it contributes to the faster deterioration of the remaining cat (CEL has come on like clockwork lately for cat inefficiency, but has now been fixed with a spacer after the sensor). My suggestion to anyone is start with DPs before you even think about exhaust, catless if you don't mind rasp and want more volume, hi-flow catted if you want a lower rumble and quieter. I have full catless. Luckily with a manual I can avoid the drone range or I just run sport mode off when cruising. then again if anything goes wrong i can just go to another dealer, but will the dealer install a catless downpipe with the. But I will be. Ours has a catless downpipe, and essentially a straight pipe exhaust, which personally I think is too loud. MINI factory replacement Gasket between the Turbo and Downpipe for your 2nd generation MINI Cooper S models including R56 Hardtop R55 Clubman R57 Convertible R58 Coupe R59 Roadster R60 Countryman R61 Paceman. Needing more performance, MPG's and sound from your 2015 - 2019 2. skitsos, I've been reading more about catless downpipes, some people say that they are NOT good for automatic transmission cars, as they make to loose low end torque So I guess I will wait for a Downpipe with 200cell cat. VRSF 3″ Cast Stainless Steel Downpipes. Part of the long development time has be inability to find reliable local testers. Join Michael Berenis with guess appearance by Orlando of Boostaholics featuring some quick pulls with his LS6 turbo RX7. If the exhaust stops flowing the turbo stops moving efficiently. By Ryan McKay, Staff. Most catless DP's will trigger the CEL to go on. Discounts on Wagner Catless Downpipe BMW M235i. The Problem. Product Description. Fasterproms Cadillac ATS-V LF4 baseline, tune, and tune plus catless downpipes dyno results - 558 rear wheel horsepower CaddyBoost - Fasterproms Cadillac ATS-V LF4 baseline, tune, and tune plus catless downpipes dyno results - 558 rear wheel horsepower. Especially during cold start (that's when the wastegate is open). Unless if you are going full straight pipe, that is when the muffler sound will be loud. Luckily with a manual I can avoid the drone range or I just run sport mode off when cruising. The factory downpipe also contains two catalytic converters, which is why the remainder of the exhaust section after the downpipe is referred to as a “Cat-back”. The Invidia Downpipe sports a one-piece design, eliminating the need for the stock catalytic converter. but also doesnt mind it so i guess its not that bad. Keep in mind, the car is running pump gas, street tires, and is a full weight vehicle. X-Pipes, Mid-Pipes, & Down-Pipes from Borla. Do other peoples M5's that are catless smell this bad? *** Now when I say it smells bad, I mean that at a stop light, if the wind is blowing in the right direction and the windows are down, you get faceplanted with that sweet, yet overpowering exhaust smell. It will smell wonderful once COBB comes out with some tunes for high octane gas. The code comes up if the 2nd O2 snesors wave form is similar to the 1st O2 sensor (it should be a flat seldom changeing wave form). 5l engine, the extra little bit of flow the catless exhaust offers can cause you to overboost/boost creep. I've done probably too much research on downpipes 'cause i'm going stage 2 this Spring as well. There are no OTS (off the shelf) maps available for a catless downpipe from the accessport. yes i knew this but can the dealer install a catless downpipe? they will see my catless rp too and i might have more to worry about than them voiding my exhaust warranty. Catted and catless relate to emissions if you do not have 2 cats somewhere in your exhaust you'll get a CEL. Following the restrictive downpipe section, the stock unit subjects the exhaust gases to the choking effec. 0L TWIN TURBO: Exhaust Pipes & Tips - Amazon. Thank you to everyone for all your patience these were certainly a challenge to do correctly. Their 304 stainless steel downpipe will allow for freer flowing exhaust, and produces symphonic exhaust notes. So for those that did the install of catless DP's, sounds like maybe a 3 hour job on a lift, start to finish, if all you are doing are the downpipes? That's a small enough window where it might make sense to run catless all year and then sub them in just for inspection. Attempts at trolling or creating mischief ( starting flame wars over cambered vehicles ) will not be tolerated. I know some of you have been waiting for a while. 2015 sti catless bad exhuast fumes inside car, are catless exhausts cancerous, catless carbon monoxide, catless downpipe carbon monoxide levels, catless exhaust and cancer, catless health, catless health effects children, catless risks, does catless exhaust harm health, if catless down pipes are illegal, why are people still using them? e90, is. I want to add a catless downpipe to my 05, I know that the stock exhaust is 2. Put the cat back on and save your health. Catless downpipe with O2 simulator Does anybody have any experience running a catless downpipe with an O2 simulator to hide the enige check error? And I have read some topics about issues with fuel when you having a O2, is this true?. $280 said and done, still much cheaper than any alternative. There should be no problems using this downpipe with a ported wastegate and this will fit with any catback that works with the stock downpipe. Unlike our original midpipe design which was designed to be used only with a TurboXS downpipe, this midpipe was designed to work with both TurboXS and any stock replacement downpipes. 2013 dodge dart downpipe, 2013 dodge dart downpipe mod, 3in downpipe dodge dart 13, dodge 1. Deletes the restrictive donut gasket found in many other designs and promotes full 3" flow throughout. Add a Cobb. I managed to get some logs and I am not sure what to look for in these logs. I've read catless pipes are rather smelly, how is the smell sitting still?. 0 gti,turbo core's (chra), turbo chargers, turbine shafts, compressor wheels, turbo repair kits and perfor. Eurocharged Performance, offers many different services in its exclusive and well maintained facilitates all around the world. Muffler Delete for my 550i So my exhaust budget is around $1,000 and after a lot of research, I have come to the conclusion that deleting either the muffler or resonator OR getting catless DP's is my best option if I want to save money. 95 The Alpha M5/M6 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. /r/Subaru is a family friendly (to a degree) subreddit. 3" Turbo Catless Downpipe Exhaust For VW Golf GTi Jetta Audi A3 2. So for me this mod is a no-go, but since it will be my DD I'm not too concerned about the 5hp from a catless downpipe. Depo Racing 2015 - 2018 VW GTI Catless Downpipe. Are you catted or catless and what are you thoughts? My thoughts from what I have read are: Catless - obviously much much cheaper +2 maybe 3hp over catted. With that said - what is everyone's thoughts on the magnaflow system paired with the catless mid pipes?. Down pipes are in abundance these days such as M3, M4 downpipes and more; in any case, not all have the qualities that you are searching for. While I am probably never going to upgrade the downpipe on my car, as far as the comparison between a CNT downpipe vs a CS downpipe, I'd take the CS downpipe over the CNT. I drove the Squadra Sportiva test car on Papenburg with a catless downpipe as the one I posted above together with their "quiet" system. For everyone else: 1. But a good high flow operating cat shouldn't affect HP. Constructed of 304 stainless steel with CNC machined flanges for durability, added flexpipe for reducing vibration cause acceleration. Performance downpipe products from MILLTEK. This downpipe is built to last, and have perfect fitment. Enter Agency Power with the new Stainless Steel catless downpipes to fit either the stock or any aftermarket exhaust system. I have full catless. If you continue despite us warning you, we will ban you from the classifieds completely. Better performance, improved flow, sound is amazing (since the turbo does a good job of cancelling any raspy-ness), and the burbles and pop NEVER get old!. Report all suspicious sellers. I've heard that you have to take the right side motor mount loose and jack the motor up 1 inch or so, is that true?. My question is, am I going to run into any issues because my car is stock with a stock ECU? Or is a tune needed after running a catless downpipe?. When we made our downpipe we did put a cat in it. 5 inch diameter all the way through) for their Catted Full Down Pipes, which should not decrease the performance compared to their Catless FDPs. Has anyone else played with different muffler-resonators. 5+ GEN 2 CRUZE. I see many brands of catless downpipes ranging from $1,500 - $2,300. This is the Invidia catless downpipe with a Cobb SF air intake, Tomei Expreme Ti catback, and a Cobb Accessport OTS stage 2 map. I had a catless on my WRX, and did not notice an increase in smelliness. the sound is awesome. Just a good bit faster than my own then stock car. Product Description. Catless is 200 bucks cheaper but is the smell that bad? Like noticeable. These are 135i / 335i catless downpipes! In addition to an improving and deepening the exhaust note, these downpipes add power and minimise turbo lag, making the awesome N54 engine even more responsive!. In fact, the only complaint I have is less with the product and more with attention to detail. Catless Smell Experiences - posted in Power and Drivetrain: Hi All, So, emissions requirements aside, how does the GTR fare with going catless as far as smell is concerned? This may be subjective, just like exhaust sounds, but do folks find the increase in smell tolerable when driving on the street?. 0L Twin Turbos 792585089951 | eBay. Catless you'll get the rich smell of gas though But either wayyou get the extra power of the downpipe, but a stealthy setup with the stock cat-back & no drone. The sound difference is amazing. 0T 10-14 Downpipe + Catback Exhaust Turboback” Cancel reply. Starting with the CAD designed investment-cast turbine outlet, made of 304 stainless steel for enduring corrosion resistance and reduced heat transfer to the engine bay. Please note that without engine management such as the Cobb Accessport, a catless downpipe will trigger a check engine light. Since the issue with being catless is running out of fuel, adding meth will increase the fueling capacity of the vehicle and prevent you from running out of fuel if a boost creep situation does occur. VRSF, RPI and MSR all don't fit perfectly. Piper Stainless Steel Full Exhaust System For Ford Fiesta Mk6 1. Thinking of building a catless downpipe and adding a cold air intake plus a tune to support the mods. I drove the Squadra Sportiva test car on Papenburg with a catless downpipe as the one I posted above together with their "quiet" system. I currently have the ssr catless downpipes (mid pipes) on my GT. Without a cat a lot of the gases that are ejected from the exhaust have a very raw, bad smell. Unfortunately, the factory downpipe that comes as standard equipment in your car was designed for anything but performance. Bad News Racing 2011+ Buick Regal Turbo Stage 1 Kit $725. Borla Downpipes feature patented, straight-through and multi-core technology to unleash hidden horsepower. On occasion someone will find a podunk shop that doesnt care and will just pass the car. By eliminating the restrictive catalytic converter in the factory downpipe, back pressure is significantly reduced which results in faster spool, an increase in power & a more aggressive exhaust note. Resonator Delete vs. Report all suspicious sellers. Ok guys, I installed an ER catless downpipe and my eyes burn every time I drive the car! This is with the windows closed. 4T with the tune ran better after regapping, just be real careful with those iridium tips. After reading There is no way one tune will work for both a downpipe as well as a stock car. Needing more performance, MPG's and sound from your 2017 - 2018 3. Velocity Factor - MazdaSpeed3 Best Practices for Reliable and Safe Downpipe Upgrades I wanted to make this post because we have been getting a lot of questions lately regarding performance downpipes for the MazdaSpeed 3, Mazda3, and Mazda3 MPS. Buy High Flow Catless Crossover pipe for 2011 - 2014 Ford Ecoboost F150 V6 3. Please enter a valid email address. This setup has worked very well, but I do think that it contributes to the faster deterioration of the remaining cat (CEL has come on like clockwork lately for cat inefficiency, but has now been fixed with a spacer after the sensor). You can hear the turbos sing under acceleration as well as when you let off. I would have just gone high flow. i was at a red light and when i was about to take off i looked in my rear mirror and noticed a cloud of white smoke coming out of my exhaust. If you continue despite us warning you, we will ban you from the classifieds completely. Starting from sway bar endlinks for the Subaru WRX back in 2003, Agency Power now has and indepth number of parts for cars ranging from Porsche, BMW, Ferrari, Subaru, Mitsubishi, Nissan and many more. For everyone else: 1. These lightweight ?test pipes? fit in place of the heavy OEM catalytic converters integrated into the downpipe. They are not a one time buy thing. HUGE difference in sound (and performance, after the tune). Assuming you haven't added a catless downpipe in atleast 200 mi then it would appear you have a bad catalytic converter.