Welcome!
Is it modded? Are you running an Induction Kit etc? What are you trying to get from the zorst? Are you going for sound (pop and crackle) or adding it to an all round package of modifications.
Everyone will tell you what
THEY think of their exhaust system TBH. lots of fanboys for Milltek, Blueflame, BCS and so on. Get out in a couple of cars with this exhausts fitted. If you go DeCat and Non Res then expect it to drone on a motorway from 2500rpm +! But as said thats just my opinion, ETTO I suppose.
LOADS of threads on the subject, just use the "Search" button
Happy reading!!!!!!!