Dek, I've fitted the acoustic trim.....nicely made and comes with clamp and rear exhaust hanger bracket and rubber. I needed to trim the rear exhaust pipe by a few inches which Rob warned me about...you may not need to depending on your system. It certainly works; the sports system was quite noisy before, a nice deep burble at low revs but it "blared" on an open throttle which was a bit tiring...I wanted it to snarl or roar! ( hmmm....just too much to expect from a Sigma! )The low revs burble is still there, very slightly muted but the blare has changed to a slightly quieter deeper sound which is not so obtrusive. There seems to be no perceptible reduction in performance so all in all both the Sports system and Acoustic trim have been a success.
On reflection...gaining around 10bhp hasn't been particularly cheap ( damn that expensive cat!) but then as they say...you don't get owt for nowt!
Last edited by Jays; 02/11/11 02:14 PM.
