Exhaust fitting

Tahrey1043 · Post by **Tahrey1043** » Sun Jan 11, 2004 3:26 pm

Ok probably a question asked a million times... but if I want to decat my pre-92 Mk3... does it have to be a custom job? Or would one from a mk2 fit - and/or any mk3s made without the catalysers? I'm considering a boogie round the scrapyards now, seeing as the pre-xmas sales rush has died off here

optima21 · Post by **optima21** » Mon Jan 12, 2004 9:33 am

I think hardhitter off here does modified downpipes for GT's that are de-catted, but they have twin downpipes that join just before the cat.
A mk2 downpipe would need modifying anyway as there is a threaded inset for the lambda sensor, which controls the fuel injection system

amstrange1 · Post by **amstrange1** » Mon Jan 12, 2004 2:22 pm

Mk2 downpipes are also shorter than the Mk3 ones, so you'd need an extra bit of pipe welded in as well as the threaded insert for the lambda probe. I have a new Mk2 downpipe in me shed - yours for a tenner, can bring it to the Club Polo RR day if you're interested? Think postage will be expensive.