I have a vp with a 5.0l with coldair induction , 70mm t/b and a hsv 185 chip with knock sensor was woundering what exhaust would sound better a high flow cat with a 3inch or high flow cat with 2.5 inch
thanks
if u want a deep rumble then go the 3 inch or if u dnt want it so deep and u want it a fraction louder go the 2.5
i got single 3 inch mandrel with hi flow cat. It was very drowny and messy sounding, but once i got some decent extractors fitted it quietened it alot and sounds alot better now.
Im chasing a 3" setup so if anyone has one to sell pm me. Or even a dual setup. Id go a 3".
thanks for your help i went for the high flow cat and a 2.5 inch sounds nice