BMW Forums : BimmerForums banner

cats

  1. 135i E82 Primary Cats taken Out but not been remapped

    BMW 1 Series - Tech Talk For All Gen Of 1 Series
    Hi Guys, my 135i has been decatted from the primary cats, but the person did not have it remapped out of the ecu and i keep getting an irregular misfire for a milli-second because the Check engine light is on and bmw turned it off and it comes back on straight away. I have changed my ignition...
  2. 200 cel cats

    BMW 8 Series Forum - Technical Talk on the BMW E31
    going to be changing my exhaust (manifold back) for a stainless one as my cats are shot, thinking of putting 200 cel ones on and my question is will i have any problems with emissions with these cats thanks
  3. BMW 840ci How Many Cats?

    BMW 8 Series Forum - Technical Talk on the BMW E31
    In the near future I'm hoping to replace my exhaust system with a stainless steel system from the manifold all the way back. I'm just curious if the 840ci has 2 cats or 4.
  4. Wanted e38 Exhaust downpipes with cats and lambda probes must be from anything v8 engine

    Items WANTED - Post any wanted adverts in here
    Wanted e38 Exhaust downpipes with cats and lambda probes must be from anything v8 engine Wanted for a 750 but 740 system would be fine as I will be welding them into the original system as mine were cut out and stollen. Many thanks James 07977 502097
  5. Help!! N53 Cats needed

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi all, I need some help, I have a 2007 e92 330i with the N53 direct injection engine. Unfortunately it needs the cats replacing. I can find an aftermarket one for bank 1 but i cannot find anyone that sells an aftermarket one for bank 2. I have used the BMW part no's but the bank two one that...
  6. Does my car really have four cats???

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Owing to my ongoing p0420 problem, I finally took the car to the garage for their clarification on whether it's lamba or the cat and they are certain it's the cat, however, upon asking for a quote for replacement they tel me after a call to their suppliers there are four cats to choose from, two...
  7. FS: BMW 3 Series E46 M3 Sports Cats - TMS Motorsport

    TMS Motorsport
    More great items brought to you by: THE MOFF SHOP / TMS MOTORSPORT FS: BMW 3 Series E46 M3 Sports Cats Manufactured from mandrel bent T304 grade stainless steel. Features a mirror polished finish with a 61mm bore diameter. Built in non type approved...
  8. WANTED: E39 M62B44 both cats (catalytic converters)

    Items WANTED - Post any wanted adverts in here
    Hello, does anyone have both cats available? The oem were replaced by some nasty old tiny ones. Maybe M62TUB44 also fits.
  9. FS: BMW 3 Series E46 M3 Sports Cats - TMS Motorsport

    TMS Motorsport
    More great items brought to you by: THE MOFF SHOP / TMS MOTORSPORT FS: BMW 3 Series E46 M3 Sports Cats Manufactured from mandrel bent T304 grade stainless steel. Features a mirror polished finish with a 61mm bore diameter. Built in non type approved...
  10. FS: BMW 3 Series E46 M3 Sports Cats - TMS Motorsport

    TMS Motorsport
    More great items brought to you by: THE MOFF SHOP / TMS MOTORSPORT FS: BMW 3 Series E46 M3 Sports Cats Manufactured from mandrel bent T304 grade stainless steel. Features a mirror polished finish with a 61mm bore diameter. Built in non type approved...
  11. Secondary Cats Delete

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Im thinking of having the secondary cats and resonators removed on E92 M3, will i have issues with the engine lights coming on or power issues with engine, as im not having it remapped. Will i need to have it mapped?
  12. Type approved cats

    BFuk Open Topic
    Hello, hopefully someone will place this where it needs to go. E36 318is 1998, I understand I can use a non type approved cat because of its year but the question I have is will a non type approved cat be man enough to pass an mot?
  13. m3 e36 evo cats in m3 3.0

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi guys! i have a 1994 m3 e36 3.0, and my cats are broken, o have find a cat from a 3.2 m3 e36 evo..but we know the oxygen sensor are in differents points.. in the 3.0 they're in the cat, but in the 3.2 they're in the manifold.. i dont have any problem with the weld..but i think it's very...
  14. Replacement cats for a V8?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    I'm looking for some replacement catalytic converters for my daily driver BMW E39 540i V8 which just ticked over 257k. I've read good things about Magnaflow on US forums but does anyone know if they are available in the UK? I don't want cheap pattern parts, nor do I want to be bent over by the...
  15. Aftermarket headers with cats - Replacing OEM manifold - options inside

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi guys! I am new here and decided to log in after months of reading you and learning a lot with all of you. First of all, I know this has been discussed "sometimes" here but I still have some questions about my car. It is a e46 330i 5MT saloon (ending of 2000 I am the first and unique owner)...
  16. FS: BMW 3 Series E46 M3 Sports Cats - TMS Motorsport

    TMS Motorsport
    More great items brought to you by: THE MOFF SHOP / TMS MOTORSPORT FS: BMW 3 Series E46 M3 Sports Cats Manufactured from mandrel bent T304 grade stainless steel. Features a mirror polished finish with a 61mm bore diameter. Built in non type approved...
  17. 2001 e39 530i - Cats clogged, what should I do?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    As the title suggests, I own a 2001 e39 530i Automatic - over the past couple of weeks it's been driving like a tractor. I took the car to a specialist yesterday and as I suspected the cats on the manifold are blocked. The specialist has suggested a few things to me: • Replace the cats with...
  18. Custom exhaust manifold and legal sort cats question. 645ci V8

    BMW Tuning Forum
    I'm considering having the aforementioned fabricated for my 645. I've not been able to find any info on anyone else doing this, can I expect de net increases in bhp? I still need it to pass mot emissions obviously
  19. e46 330i need advive car is running like [email protected]:p (cats)

    BMW 3 Series Forum - Technical Talk on the BMW E46
    i picked up a very cheap 330i convertible today but it is running very rough ,when driving alongand you put your foot down it doesnt go anywhere and just bogs out and you get a popping from the air filter and it is alot worse when cold but if you are at a stand still and gradually build the revs...
  20. Stainless sports cats for 850.

    BMW 8 Series Forum - Technical Talk on the BMW E31
    Hi guys, Have had sports 200 stainless cats on my 850 but still fails emissions. I am working abroad and the car is at a local BMW specialist for the MOT, so I am at a slight disdvantage. They say that the nearside exhaust is blocked???, and the L bank is firing ok. Any thoughts of wisdom, this...
Top