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catalytic converters

  1. Wanted: stock downpipes for m6/m5

    Parts / Other For Sale or Wanted
    I need stock downpipes downpipes for my m6. I believe the m5 downpipes are identical. Please message me if you have them. Need them soon. Thanks! Text or PM 8184547167 Robert
  2. WTB: E39 M5 Catalytic Converters

    Parts / Other For Sale or Wanted
    Looking for a pair of catalytic converters for my e39 M5 or equivalent aftermarket options. Let me know your price shipped to 60025. Thanks!
  3. Exhaust parts for BMW F10 M5 V8

    Exhaust Discussion, For Sale, or Wanted
    Special price & free delivery for Turbo downpipe kit Right & Left (Replaces catalytic converter) BRONDEX for BMW 5 Series F10 M5 V8 2012- is entirely made of high-quality stainless steel by the means of the welding by TIG technique in argon medium. • Diameter 89mm., wall thickness 2mm; •...
  4. BMW For Sale 2010 M6 headers, factory cats, manifolds 700 shipped

    Parts / Other For Sale or Wanted
    im selling my factory m6 v10 exhaust manifolds that have that cats built into them, i recently got the evosport headers installed and not thinking ill ever return to stock. i know these things are worth a mint but looking to get $700 shipped. Email me at [email protected] or text or...
  5. Does primary cat delete affect engine

    E60 M5 and E61 M5 Touring Discussion
    Good evening Need suggestions and feedback. How primary cats removal will affect the engine and to the exhaust system. Please explain how specialist put back sensor, so the computer won't show engine check light. Thanks in advance
  6. URGENT- Help Needed: Bad DME and Cat?

    E60 M5 and E61 M5 Touring Discussion
    Ok.... Very frustrating Day at the dealership. My car a 2006 with 65k. I first want to say thank you to Eloy for setting the service guy right at Bill Jacobs in naperville. Here is what happened.. My car had a rough Idle, the slow rpm up and down, it started a week ago and came and went...
  7. Catalytic converter bank 1&2 problems

    E60 M5 and E61 M5 Touring Discussion
    I really hope any of you can help me now. Have had this problem to battle with in the past months now. Problem is that the faulty codes "catalytic converter bank 1 & 2" comes up. As previous read and discussed in threads here I have changed the lambda/CO2 sensors and the temperature sensors for...
  8. Racing Cats Fitted - Done and Tested and Answered with photos

    E34 M5 Discussion
    Guys, After researching a fair bit and finding little to no info re the cats, i decided to give it a go and see what happens. My reasons as follows: 1. Complete decat was out of the question for many reasons. 2. Yes the 3.6 m5 ceramic cats are rock solid however after 20 years, like...
  9. Want to Buy E39 M5 OE catalytic converters

    Parts / Other For Sale or Wanted
    Anyone upgraded their cats and have the OE cats laying around that they can sell?