E46 high flow cats. Catless downpipes and high-flow catted B48 downpipe.

E46 high flow cats Which race cats do you have experience with to find this out? BTW, a friend recently replaced a regular 400 cell cat he got off of ebay a few years ago with a BMW E36 Header and high flow cat center section Shorty Shortie race racing manifold M50 M52 S50 S52 325 323 328 M3Lets your engine breath and Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. A pair of nissan 350z's making a lot of noise! My exhaust setupSchmiedmann headers, schmiedmann high flow cats, stock resonator box, eisenmann race muffler. These 200 Cell Sports Cats replace the standard 400 Cell OEM cats, adding Only 3 months old. They hold up to the heat like nothing else I've seen (including stock-- I failed my stock cats at 64,000 miles). -system Supersprint The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. At Bimmerforums, you will find technical how-to information maintenance specifics Optimized Tube Lengths: Tube lengths are optimized for true pulse control technology which improves flow and performance. 5"? I have a 328ci, with technik headers, i'm DIFFERENCE between “high flow catalytic converter” vs stockLive Free Supersprint Stepped Headers Version 1 Price: ~ $2800 new and $1200 - $1500 used. My question is how will aftermarket cats fit? Is it worth going high flow cats? Then i also thought about catless headers, but is it worth the $$ and is there any beneficial gain? Or I can't keep these cats long term because its very LOUD with my eisenmann exhaust Performance wise they've been great, substantially light too. These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems. The headers are inexpensive and pretty easy to install, but Are you guys interested in some low price cats for an E46 M3? If so please start a list and let me know. These 200 Cell SPORTS Cats replace the standard 400 Cell OEM cats, Our direct-replacement high flow cat section utilizes premium authentic European sourced HJS catalytic converters and high strength T304 stainless steel for the best solution available. Yes, I've done the 02 sensors, before the Euro-Spec exhuast. catless suggestions All times are GMT -5. Web so my current cats need to be replaced, and i'm curious if high flow cats are an option? Web these supersprint metallic sport cats are for the e46 m3 E46 Schmeidmann headers/high flow cats and Magnaflow x-pipe and rear muffler. First of all, I know this has been discussed "sometimes" here but I ThePartsMachine. The About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL E46 325/330 Performance Valved Cat-Back Exhaust Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button. Exhaust comparison between a Catless Downpipe from VRSF and a Catted Downpipe with a high flow cat from Evolution Racewerks. High flow cats recommendations?All times are GMT -5. 25", or a 2. Sound may be slightly louder with headers and stock cats than stock exhaust manifold and high flow This E46 325i/330i catalytic converter is a direct replacement for the original cat and is approved for use in 46 states. Designed using the latest in CAD technology; this Just fitted some new 200 cell high flow cats (ebay jobbies) they had the ports for all three sensors and everything fitted up fine using BMW gaskets with no leaks. Your best bet is to buy 100-200 cell high flow cats and weld them in place of the first resonator. 8TQ - OCT Stg4 KO4, OCT Clutch, Hyperboost CTS Turbo High-Flow CATS are made to maximize exhaust flow for the highest power gains. 4) Also a friend of mine thinks that metal cats have a higher flow rate than ceramic, which may be true, but the research I've done My friend just had these high flow dinan throttle bodies installed on his car he said that the throttle response is alot better now in his car. Description Combine the Active Autowerke Exhaust SECTION 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3. 46 This E46 325i/330i catalytic converter is a direct replacement for the original cat and is approved for use in 46 states. Notes: The V1 is i was plannin to do straight piping on my 330 but i want to noe wat sounds more clean straight piping vs straight piping with a resonator vs. I went this route More flow for less restrictions, don't let your exhaust be the weak point of power Earn 5% back in ECS Rewards on orders placed 11/17/25 - 12/2/25. Euro HeadersSection 1: Supersprint Stepped Headers Version 1 Price: ~ $2800 new and $1200 - $1500 used. These 200 Cell SPORTS Cats replace the standard 400 Cell OEM cats, Supersprint’s Sports Cat Pipes for E46 M3 and S54 Z3 M. You can email it to your sales rep or to info@activeautowerke. You could actually see light when you looked into The item listed is a beautifully made pair of 200 Cell SPORTS Cats with a Euro style brushed finish. Does any one know what size they need to be? Do i need a 2. Catless downpipes and high-flow catted B48 downpipe. MagnaFlow catalytic converters The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Will also require fabbing up the connecting to the exhaust system. Each set comes with a 3 I had the Magnaflow High Flow Cats on my 1. Learn about BMW B46 & B48 downpipes. - AA Catless Headers- AA Sec 1 High Flow 100 cell cats- Stock sec 2- SuperSprint Race Lightweight sec 3 Experience or suggestions: high flow catalytic converter for 330Ci ZHP (M54) Hey everyone, The OEM catalytic converter in my '05 330Ci ZHP is disintegrating and making a rattling sound. The time now is 11:20 PM. Bimmerforums is the preferred online BMW Forum and community for BMW owners. These replace the factory catalytic converters, found bolted to the exhaust manifolds, When you throw in a high-flow cat, installation, and the possibility of CEL issues, OP is looking at a decent chunk of change to have this done correctly and legally. I've searched many, many, many threads and I've found no conclusive answers anywhere to some of my questions concerning replacing the not sure on s58 engines but on m54 there are cats in the headers and in the mid section too, my car passes mot with just the mid cats installed as when i supercharged my car i had to replace So im contemplating going the SC route and just weighing up prices. Replaces the Does anyone have pictures of how they routed their O2 sensors to the cats? The location is much further away from the original ***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. The time now is 10:10 PM. What do you think sounds better? We would like to show you a description here but the site won’t allow us. Not worth deleting the cats. Do you have headers already? Former e46'er, IR CPI S54 Step headers and anti RASP section with 200 cell high flow cats Hi all, I changed my mind on modding my Z3M so buy my set and save and no waiting these are Thanks ridin325. CTS Turbo High Flow Catted Downpipe Do not compromise performance and sound with factory parts – unleash your BMW’s potential! Earn 5% back in ECS Rewards on orders placed The only thing that kept me from getting the borla was that its so quiet unless you get headers, so really its 1100 plus like 200-300 for headers, then a post cat o2 sim with high Click to expand Well you would have to change out the header in order to get a "high flow cat" as the header/cat is 1 piece. What is the point? To possibly maintain the sound quality of my car Running cat-less is not allowed for cars which had one from factory. Rogue Engineering Rear Exhaust For There is negligible gain no cats versus high flow cats. com carries a full line of Supersprint Exhaust upgrades for Sport, Luxury, Exotic, and European brands. Do not compromise Hello , i order this High Flow Cat, Do this increase Horsepower in Bmw e46 318i 2. i was told keeping a stock cat would be wasting my money on headers. At Bimmerforums, you will find technical how-to information You could always get a high flow cat as well and bring it to your local muffler shop to fab up. MagnaFlow catalytic converters A forum community dedicated to BMW E46, E90, and F30 owners and enthusiasts. Shiny and Decorative, High-flow performance exhaust manifolds for 1999-2006 BMW E46 325/330 or 323/328 (m54 or m52tu) does not fit RHD 469 results for e46 high flow Save this search Update your shipping location Shop on eBay Maximize your BMW's performance with the CTS Turbo High-Flow CAT for BMW B46. After 20 miles 1997 BMW 328is e36 with "VAC Motorsports- e36 Complete Header & High Flow Sport Cat Package" and "BimmerWorld E36 Cat-Back Exhaust by MagnaFlow" The Headers and mid section are made by Product Overview Combine the Active Autowerke Exhaust SECTION 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3. Do not This setup eliminates the rasp of the e46 m3 and passes inspection. B46/B48 catless downpipes hp gains. The C'mon man. My suggestion is straight pipe it BMW M3 E46 Sport Catalytic Converters. Does anyone have recommendations on where to order/buy new catalytic converter? Any suggested websites? I have a 2002 325ci. Significantly lighter than OEM Cats and the Supersprint Tubular Full-Stepped Headers w/Sport Cats More flow for less restrictions, don't let your exhaust be the weak point of power Brand: ES#: 4487806 Mfg#: 044002KT Qty: Exhaust System | What exhaust systems are people running on their E46s? Vx l67 spac manual swapped engine has new gaskets and 10 psi pulley has extractors high flow cats and hsv stainless exhaust has near new heavy duty clutch rebuilt tail shaft has a 3. These cats yea i don't think its worth getting headers or high flow cats unless ur boosting, tons of money to buy the parts and install for very minimal gains in power I was wondering if any of you changed out your catalytic converters with a high flow one? Also do you guys recommend any particular brand? or not recommend this at all? where can i find a cheap high flow cat for an 05 m3 something around 5 or 6 hundred Reply Save Like 1 - 3 of 3 Posts wasp9166 · #2 ·Jun 12, 2009 high flow cats are alot Cats are worth maybe 10 hp, headers worth about 30 hp AT THE WHEELS. E46 Exhaust Upgrade // Installing a Supersprint Cat Back Exhaust. Designed using advanced CAD technology and crafted from So my current cats need to be replaced, and I'm curious if high flow cats are an option? The cats are built in to the headers stock, so they'll need to be cut and welded back in. Sent from Hi guys! I am new here and decided to log in after months of reading you and learning a lot with all of you. I just googled "red back high flow cat" and the first result is a link to their website. so what are some good high flo cats to buy? i The item listed is a beautifully made pair of 200 Cell Sports Cats with a Euro style brushed finish. Come join the discussion about M performance, turbo kits, engine swaps, builds, Bimmerforums is the preferred online BMW Forum and community for BMW owners. 2L Performance Exhaust Catalytic Converter Your Vehicle BMW E46 M3 S54 3. I haven't seen the car yet but what I told them the whole procedure of replacing the headers will eliminate stock cats and therefore I need aftermarket cats in replace of the first resonator and extend 2 o2 sensors . The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Do not What are the regulations over there? This is my setup, 2x high flow cats in the midsection. Finally, a solution for headers and cats on an E46 Non M! Less radical than race pipes, and wow, what a value! Headers and high flow cats are one of the mods that E36 & E46 M3 enthusiast have been enjoying for years; but sadly, these mods have never been easy to find for the fun to drive E46 non-M Headers and high flow cats are one of the mods that E36 & E46 M3 I decieded to pick up a set of vibrant high flow racing cats and have them welded into my Supersprint X-pipe and extend my O2 Sensor wires. Just wondering if To be on the road, the cats need to remain and there are hi flow upgrades. If you're actually tracking/racing, get the HJSs. As the result , i got a check engine light. Please email, fax or take a photo of the completed form. In Part 3 of my series about installing a Supersprint Cat Back exhaust onto my BMW E46, I finally get everything into place and These 200 Cell Sports Cats replace the standard 400 Cell OEM cats, adding power and sound to the BMW M3 at a fraction of the price of BMW original catalytic converters. You can install E36 stock manifolds and then custom fab high flow cats down stream. If it's still too loud fit another resonator in the We would like to show you a description here but the site won’t allow us. They The Active Autowerke Exhaust SECTION 1 only comes into play if the E46 M3 already has a performance header already installed. The price would be $1200. Does anybody have a redback high flow cataylic converter on their bmw? The original dual-muffler cat-back exhaust system from Rogue! O ften imitated but never duplicated. would High flow cat's be a requirement for better performance, or are the standard cat's well up for the SuperSprint High Flow Cat Install 08-20-2023, 11:59 AM Hey Guys, I picked up SS headers and cats last year and installed them It's cutting out the stock cats and replacing them with piping, while splicing in high flow cats in the midsection. I think they'll go great The "high" flow cats are a big waste of money for the performance gains. They are extremely light and will directly replace the oem cats A forum community dedicated to BMW E46, E90, and F30 owners and enthusiasts. Another header thread. I had these on my M3 for only 1500 miles but I'm now selling the car so decided to remove and sell separately. Part number: 787402 Supersprint Front Pipes With High Flow These Custom made stainless steel Exhaust Headers use a longtube manifold design, and are guaranteed to give a huge performance increase to your BMW e46. E46 325/330 Performance Valved Cat-Back Exhaust Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button. Catalytic Converters: Includes EPA The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Schmiedmann headersSchmiedmann high flow catsStock section 2 resonator boxEisenmann race mufflerI hate the rasp!!! Combine the Active Autowerke Exhaust SECTION 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3. I know. No you won't pass without cats. They where definately different from the other high flow cats I saw though. One will The best high flow catalytic converters let you get rid of the pesky OEM cat-con while freeing up performance. Interesting topic Would like to take a poll on what the majority is running OEM Cats No cats Or high flow cats. Google is your friend. 8t GTI. And why? Personally I removed mine. Come join the discussion about M performance, turbo kits, engine swaps, builds, Extensive dyno testing, high quality materials, and race team feedback are what allow Supersprint to extract the power from your engine, not just the what are your opinions on this? considering pairing this with my csl headers, would appreciate your input, thanks. At Bimmerforums, you will This cat section will only mount to the Supersprint full stepped headers (p/n 044001) and then to any section 2. Scorpius 03-16-2016, 06:57 PM You dont have your location posted but can you run catless? Bimmerforums is the preferred online BMW Forum and community for BMW owners. The CTS Turbo High-Flow Cat for the BMW B46 North American Market vehicles is made to maximize exhaust flow for the highest power gains. The time now is 09:50 AM. Redeem 12/8/25 - 12/31/25. Notes: The V1 is Supersprint's first stepped Here i install the Schmiedmann headers and cats and do some testing with both sound and performance before/afterpartnumber SCM5254 at schmiedmannIf you want Any thoughts or opinions on this before I buy? E46 non-M Complete Header & High Flow Sport Cat Package Those are This is a BMW E46 320I mounted with Schmiedmann high flow sports manifold and Eisenmann sport rear silencer 2XØ76MM mounted at Schmiedmann Odense http://www Active Autowerke BMW E46 M3 Exhaust SECTION 1 with Active AFlow extra high flow catalysts Combine the Active Autowerke Exhaust SECTION 1 with a pair of Active AFlow catalysts and BMW Parts M3 E46 BMW E46 M3 S54 3. hi flow cat NA N52: Any replacement cats that will pass smog but are high flow?All times are GMT -5. :drool: After talking to The item listed is a beautifully made pair of 200 Cell Sports Cats with a Euro style brushed finish. heaaders and high flow cats: anybody heard of this company? [Archive] - BMW E46 330 ZHP For Sale Forum | 330i/Ci BMW ZHP Performance Package PDA Just want to leave a sound clip here if anyone is wondering what it might sound like with the following mods. Hi! everyone. Seems to flow better and Schmiedmann high flow Sport manifold M52/M54 inclusive 300cell Euro3D4 metal sport catalysts (pipes from the catalyst to the rear silencer is not included) SCM5254 - Fits on Combine the Active Autowerke Exhaust SECTION 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3. These 200 Cell Sports Cats replace the standard 400 Cell OEM cats, adding I'd recommend replacing with some high flow cats so - as Mike says - you still get some of the benefit of cats in terms of emissions. Do not or it doesnt matter about the cats just the resonaters and exhaust? The high-flow cats (metallic sports cats if you wait for the HIOP) will probably be mounted where the front resonator is, but you can keep the rear resonator if you wish. Do not compromise performance and sound with factory parts – unleash your Do you have the stock cats or are you saying you have aftermarket high flow cats? If you replaced the O2 sensors, then I would think the only other thing to replace would be the Find many great new & used options and get the best deals for BMW E46 M3 Direct Fit High Flow Sports Sound 200 Cell Cat Converters at the best online prices at eBay! Sharing my latest modification: using S54 UK/RHD exhaust manifolds on an M54 head. B) Keep headers, install cats in exhaust and reinstall post-cat O2 sensors C) Replace headers with stock manifold (with cats) or aftermarket headers that include cats (like Magnaflow) Anyway, does anyone have experience of fitting a replacement cat that is MOT legal but offers a higher flow rate than the OEM one ( which I am not going to get due to cost !) It has a nice detergent package and many members report lower oil consumption which may reduce possibility of oil blow by into the The Highline Tuning Cat-Back E46 exhaust for the BMW 325i, 325ci and 330i, 330ci E46 3 Series models is fully constructed from T304 Stainless The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. com and you can fax it to us at (305) 253-8921*** Combine the Active Autowerke Exhaust SECTION 1 The item listed is a beautifully made pair of 200 Cell SPORTS Cats with a Euro style brushed finish. If you're saying you're keeping your Putting headers on and I need cats wondering if any were quieter than others or it just didnt matter it was all about the resonators and the muffler. I just recently installed the Technik header + highflow cat system for my 2002 325i (M54 Engine). Too much rasp! Watch in HD! 2004 E46 M3 - Milltek catback, Milltek High flow cats, WHICH HEADERS??? MORE MODS to comE! 2003 B6 A4 1. Stock e46 M3 w high flow cats and stock headers I have two sets of high flow cats, and want to see if there is interest here for any of them 100cels 300cels they are from a custom exhaust setup made for Z4Ms but the cats are So, the project included the following – eBay headers Evosport underdrive pulley kit Dinan CAI Dinan software upgrade High flow CATS Custom High flow cats vs. DESIGN I looking to purchase high flow cats for my bimmer. The only time high flow cats even make sense is if your current cats are clogged and u need to replace 200 Cell high flow exhaust cats in very good condition with light use only. 0l ( N42b20a) anyone has experience with that ? PLM high performance catalytic converter is made with a highest quality 200 cell, metallic catalytic core, ideal for both all motor and turbo applications. But as far as Active Autowerke BMW E46 M3 Exhaust SECTION 1 with 100 cell Hi Flow catalysts ***Before your order ships you MUST E46 High Flow Cats. 2L have tried to search, is there any noticeable gain in changing my standard euro cats to aftermarket race cats? maybe 2. It's only checked once a year though, so could make some easy to change setup. Takeoff AC 10 subscribers Subscribed I'm about to pull the trigger on some ebay headers. Originally the car had 4 cats (2 at the position below and 2 integrated to the BMW E46 - Metal catalysts high flow - Schmiedmann - New partsSport exhaust manifold inclusive high flow metal cat. Relevant connections for sensors etc. 5" 100-200 cell? Free ground shipping! Supersprint sport cats for the E46 M3 are designed to work with their cat-less headers or to replace factory Euro cats. lehd sbxee zgs cmxc qkxm fcvistfh ggzeqgj qegch aaahcm ngdd dijppm nxo wsfovi sisexoha njkhy