Andymcm Posted March 24, 2010 Share Posted March 24, 2010 hi therewas wondering about what type of back box to go for, heard that many other opions and now dont know what to do. currently i am looking at a 4 inch back box as i can not find any smaller that are direct fit. was told this would not affect back preessure that much as it is only the back box is this true?any advice would be greatcheers,Andy Quote Link to post Share on other sites
ste91 Posted March 24, 2010 Share Posted March 24, 2010 Back pressure is a load of nonsense.Personally I wouldn't go for anything bigger than 3 inch as it's a small car with a small engine and it definately doesn't need a 4 inch backbox. Quote Link to post Share on other sites
Andymcm Posted March 24, 2010 Author Share Posted March 24, 2010 cheers for the advice. would you know if anywhere which i could get a 3 inch one that is direct fit preferably a second hand one cheers Quote Link to post Share on other sites
ste91 Posted March 24, 2010 Share Posted March 24, 2010 No idea mate, IMO the best exhaust for the non turbo EP91's is the TTE one that comes standard on SR's. But obviously they aren't that easy to get hold of. Quote Link to post Share on other sites
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