You will experience much quicker spool. Increases 10-20 horsepower and 10-20 ft/lbs tq. Perfect for everday use and also a major bonus for you autox'ers that need to keep the stock turbo but want more power. Watch that boost needle swiftly jump right up even at partial throttle.
Turbo exhaust side is thoroughly ported on the inlet and outlet.
Compressor side inlet and outlet are ported and tapered out.
Porting and Polishing of the stock turbo is very advantageous because:
Ceramic coating of the turbo is important because: