My friend has a GTI 1.8T full exhaust, APR tuned ECU, CAI, and FMIC running 22psi and I stayed even with him in my 4G63 Laser with just intake, open DP and 18psi. The 1.8T's can't hold that much boost though, it drops down to 10psi by redline (and that's according to a few GTI owners, including...