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  1. FS: ARH Headers with Upgraded Cats *Socal*

    Engine & Performance
    To remind the clueless… I think today, I'm going with Engine-ish Pt 2. Going with some non-CSL stuff for a bit. First up we got ARH Headers with cats. Cats are upgraded to GESi instead of the normal cats that you can get with them. The headers were also ceramic coated by Swaintech. Brand...
  2. Exhaust stud nuts are seized - Any ideas

    General E46 Forum
    So I've been around cars for a long time (started wrenching in the 70s). Wondering if anyone has helpful ideas to remove the exhaust manifold nuts. We want to replace the stock Exhaust with catless headers (I suspect the cats are plugged). BUT I cannot get even one of the nuts to break loose...
  3. misfire when driving normal and not when driving hard

    Driveline, Engine & DME Tuning
    Hello i did some looking around and i didnt see anything about this i have a 2000 323ci and i can't drive it in D or SD i have to drive in manual mode (not the worst thing in the world) and I have to drive aggressively or the car will start to misfire in cylinders 123 or 456 and occasionally I...
  4. WTB [330Ci] Bimmerbrakes headers

    Engine & Performance
    Closed!! Long time listener, first time caller. Looking to buy some bimmerbrakes headers. My car doesn't need cats as it is off-road use only. Located in Boston, MA and would prefer someone local to New England but if you have a set and are willing to ship, let's talk.
  5. Broken header studs :’(

    General E46 Forum
    Hey guys, I hope ll is well. On my end not so much for my car. Since I bought the car 3 years ago Ive been hearing a ticking sound on cold starts and mainly noticeable when I apply gas in the lower rpm range. Anyway it turned out to be a leak at the headers and I thought mehh no big deal...
  6. New Headers, now bogging at mid rpm (330Ci)

    General E46 Forum
    I started to have an issue with bogging around 2500 RPM after installing eBay headers. I keep hearing about swapping O2 sensors by mistake and was wondering about that? However, I have no post-cat sensors in (unplugged). I did have to use a 90 degree adapter on a pre-cat sensor and im wondering...
  7. Misfiring on Cylinders 1, 3, and 6(Help!!)

    General E46 Forum
    So I have replaced the oem headers with aftermarket catless headers. I’ve been driving with CEL on and I want to try and fix the misfiring problems. I’ve got 3 misfires on my engine. I only have the o2 sensors that go before the cats on and the ones after the cats are off. Recently I have...
  8. EvoSport coated Headers --- Seattle Area

    Engine & Performance
    Hello all, I'm trying to make space in my garage so I have to get rid of the headers that I never installed. These have been sitting uninstalled while i was overseas for the past few years so they are mint. These are black ceramic coated and are gorgeous. They are some of the best...
  9. Should you Install Headers? The Pros and Cons

    General E46 Forum
    Hey guys, I made a YouTube video regarding the pros and cons about installing headers if anyone was wondering if they should get them or not. Be sure to subscribe I upload every week about my E46 Build! Video Link: https://youtu.be/4pNfGpRJDb0 Channel Name: Jay Soh
  10. WTB M3 Euro Headers or OEM Fitting Catless Headers

    Engine & Performance
    I'm looking to buy used headers that will bolt right onto my car without having to redo the studs, or worry about fitment. Euro seems to be the best option... Let me know what you have I'm located in LA but can pay shipping if I have to. Thanks
  11. WTB E46 M3 Catless Headers

    Engine & Performance
    I want to buy either ebay headers with guaranteed good fitment, and or euro headers... or anything under 500$, I cant justify spending 1,000$+ for tubes welded together that makes the same power gain. Let me know what you have thanks! Located in LA, can pick up locally, and I can pay shipping...
  12. E46 M3 FS: Supersprint V1 Full Stepped Headers *Socal*

    Engine & Performance
    I have a set of brand new, never used/install full stepped headers for sale. These require the stepped section 1 from Supersprint. I have also had it ceramic coated with White Lightning by Swaintech so that's why you see them white in the pictures. Asking $2200 picked up. Will ship at buyers...
  13. E46 zhp problems and headers question

    General E46 Forum
    New to the forumz from canada just got a 04 330i zhp 4 door silver few questions hope you guys can help! (A)I have a slight hesistation (lag) only between 2500-3000rpm you can feel it most in gears 3 and up under light throttle. You cannot notice it ever under full throttle. also sometimes the...
  14. E46 M3 (new) Status Gruppe E46 M3 Headers (coated by SG)

    Engine & Performance
    SOLD Thanks for your interest
  15. WTB Exhaust Headers for 325/330

    Engine & Performance
    Looking to buy exhaust headers for my 330Ci. Preferably ceramic coated but plain steel is fine. Looking for under 200$ CDN, before shipping(will pay for shipping). Local to BC V0H 1N1. Figured I'd ask here before puling the trigger on ebay.
  16. Used Active Autowerke Headers - M54 325/330

    Engine & Performance
    I have a set of used Active Autowerke headers in good condition with old ceramic coating. They could easily be cleaned back to stainless or painted again with more ceramic coating. One set of studs had to be cut to remove them, so it will need to be pressed or drilled out and replaced with a new...
  17. E46 M3 Active Autowerke M3 Headers

    Engine & Performance
    Sold
  18. WTB E46 M3 Aftermarket Headers

    Engine & Performance
    Looking for some aftermarket headers, preferably SS V1 or V2. Open to anything though. Also looking for aftermarket exhaust parts.
  19. E46 M3 EBay headers

    Engine & Performance
    I have up for grabs some eBay BMW M3 Headers . They are brand new just never got to actually installing them . Since they are eBay headers it is a hit or miss(read online- a lot of forums) . They run brand new for 130 . I also put a ceramic coating of spray paint as well . These come with all...
  20. FS: BimmerBrakes Gen3 Headers for E46 3 series and ZHP $300

    Engine & Performance
    Hey guys, I sadly had to pass my ZHP on to someone new last month as I picked up an M3. So before selling it I had to get it smogged and took these off and never got around to selling them. Anyway, they are BimmerBrakes Gen3 headers and I could not have been happier with them! I bought them new...
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