I am going to make a custom stansiels steel exhaust in my 16v.
I have some guestions :P I have non moded engine.
I want make only ITG panel filter, exhaust and remap.

1. What diameter? 2 or 2,25 inch
2. Make only rear silencer or mid and rear. I have dedicated remus rear silencer now.

I want to increase power...

Thanks for help.