I'm a bit confused
My firend has a 1.6 16v astra MK4 and did the veccy C + panel filter / derestrict mod and the results were pretty good, nice little increase in response and aquite a sporty sound when you bring up the revs. So i thought i'd give it a go. I got a little increase in power, not as much difference as the 1.6 but the noise was exactly the same as before. Anyone know why this is? or how I could get it sounding a little nicer?
(Both of our cars have standard exhausts)