Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939-00) FITMENT_SPORT_TECH The B&M Shift Improver Kit

The B&M Shift Improver Kit the easiest way to get the performance you've always wanted out of your automatic transmission

Fits inside the confines of the oem under panel with no bulge or clearance issues

and Porsche models

All filter assemblies feature an O-ring for positive sealing in high pressure applications

Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/o Bottle (20939-00) FITMENT_SPORT_TECH The B&M Shift Improver KitThis Billet LT4 Supercharger Lid replaces the upper supercharger lid on all GM LT4 Superchargers for a quick and clean install. Nitrous and fuel are injected into each cylinder from inside of the supercharger lid, providing direct port style distribution. Systems come standard as a single stage with jetting for 100 to 300WHP. This lid is made from a solid piece of billet aluminum with 1 8NPT machined directly into the lid, which makes it easy to add a