1987 S4 Running Rough/Rich
If you can get away with no cat, I'd recommend doing it. An X-pipe would be a sound and HP enhancement, and if you need to you can run cats with one. I can't really say much about quieting down a car since mine is quite loud with just a 3" straight through Magnaflow.
Point taken and i will check the sender area and fuel lines and pump and all. Note that there is no smell except when the car is running. That is why i have been assuming that is is emissions related. i will check the fuel lines and components as you suggested though.
Sincerely,
Khaled
thanks for the feedback (P.S. your car looks hot...). I will check the MAF and get and get a new one just in case. I am not sure if i want to get the X-pipes (i have straight pipes with no cats and it is too noisy).
The MAF is only part of the whole system but as mentioned considering the age and mileage its proably time for a rebuilt unit. As I've posted before I love the sound of my exhaust system with stock headers, the Motorsport X, GT resonators and a RMB. My wife is now liking it! Each to there own though


