Paul Dickens Posted February 10, 2003 Share Posted February 10, 2003 I am going to start the process of upgrading my 1800cc supersport engine shortly, eventually going up to about 200bhp. I believe the first thing to do is to change the exhaust system.The car currently has the standard four into one into a cat built into the silencer. What I am thinking of doing is fitting th four into two into one system from the SLR without a cat then going into a Raceco silencer. I've been told the primary pipes on the SLR system are all identical in length giving a better flow. What do the "wise sages" think of this idea, is it a good one? or is it a bad one? Link to comment Share on other sites More sharing options...
tom7 Posted February 11, 2003 Share Posted February 11, 2003 Chutney, There have been reams of stuff written about exhausts. Search the archives to see what's best. This is what I did and based on that have just purchased a 4-2-1 system. Can't wait to fit it. Tom Link to comment Share on other sites More sharing options...
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