Having an almost standard polo it's time to change the exhaust (cat-back) because both silencers in the boxes are broken so they start to make noise...
I'll definatelly use inox pipes and boxes with inox welding...
Also, i'm going to make 2 boxes to keep the noise down...
My question is what's the most efficient bore that the exhaust must have (from midbox to backbox)
Thank you for your time, Alex...
i use 63mm bore but thats just purely for performance reasons.. and is very loud with no box's at all
i used a 50mm ( 2" ) system with a standard middle box and was a great system with low noise until you hit the full throttle. and has good strong tone to it with lots of torque and mid range pull
tez
you've got no silencers in the exhaust at all?! That must sound awful
it just sounds farty and well .. sounds like it has no boxes haha
i have a PSD rear silencer there also buts away being re polished..
doesn't sound too much different from it being on or off? just a little more controlled
Other advice?
My G came with a 65mm Speedtech system which is probably only a benefit if you've got a lot of horses or a turbo.Strangely enough, it exited through a 50mm tailpipe. Basically it was crap.
I've now got a 50mm powerflow system which is shiney enough to impress Hedgehogs and more importantly, it sounds AOK. Pleasantly muted but snarls when you put you'r foot down. Recommend 50mm.