spinmaster Posted June 15, 2002 Share Posted June 15, 2002 I have a SLR with PTP throttle bodies. In an effort to reduce noise I have put a techcaft silencer on. Due to having a very poor manifold (4-2-1) I have just had a new manifold made (4-2-1). The car now appears quicker, but I now have a huge roar that I never had before!! I this due to an improvement in the gases flowing out of the engine and allowing more air in? What is the best way to reduce induction noise? Looks like I will never get down to 98db!!!! Link to comment Share on other sites More sharing options...
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