Performance Modifications
So I recently bought a drop in filter and a stage 3 kit from ZZP: (Cobalt & Ion ---> ZZ Performance)
I got the 2.9" pulley, core charge, tighter belt, and a S3 HE
It comes also comes with:
ZZP modular pulley system
GM serpentine belt
Plug and play injector harness
NGK 4644 spark plugs...