Hi all, the exhaust system on my UK 1990 320iSE has seen better days and needs renewing soon.
Currently it is the non-cat 3 part system with a mid-box and the single outlet silencer. The question is whether I can install a 2 part system as a replacement without any adverse effects? According to the parts catalogue the 2 part system was fitted to some 320i cars, and the 325i. This seems to be a cheaper way to do it, and the rear valence is shaped to accept the twin outlets so it would be an attractive addition. Would there be any change to backpressure which could affect the engine? Also can anyone confirm whether the downpipe is the same for the two systems or would I need to replace this too?
Thanks for any advice.
-- Mark