Hey I have a 2003 1.8t and so far I have done intake and APR reflash....
I am getting ready to do an exaust and need sugesstions on down pipes I am planing on building the motor and turbo so I need something like a 3''? I am thinking about going catless for the power any sugestions?

Also I need help finding the stuff to rebuild I would like to see like 500+ HP so i would love as much help as you can give me.............