- May 9, 2005
- WEST YORKSHIRE.
- MERCEDES E55K-2001 AUDI S8-MERCEDES 300CE 24V SPORTLINE
my s500 coupe runs smooth when cold but when hot the exhaust blows quite badly and car hardly runs it seems to sort of misfire and go into a limp mode... the blowing is at the flange with the down pipe and the cats before the o2 sensor could this be causing this... my car is a 1993 model 140 coupe.. i was also thinking of doing away with the cats completely, would the car run fine with no cats. thank you.