Billet LT4 Supercharger Lid

Billet LT4 Supercharger Lid for Chevrolet Corvette Z06, Chevrolet Camaro ZL1 and Cadillac CTS-V  Modern muscle car enthusiasts, MPI wanted to create a unique supercharger lid that generates louder supercharger whine and a custom look that will set your vehicle apart from the others at Cars and Coffee! We also proved slight gains in power in a controlled testing environment. Our LT4 lid reuses OEM gaskets and can be easily swapped out in less than 30 minutes on your car. Our lid’s design entails minimal interference on the underside, thus allowing more air to go in the same direction. Power gains resulted in +11 RWHP and +14 RWTQ on a Hole Shot Mustang Dyno on an otherwise stock motor and stock tune in a 2017 Corvette Z06. The boost is available quicker and is more consistent through the power band. Our lid made an increase in about .25-.5 lbs. of boost. The lid generates better flow and causes more knock detection on the stock tune which results in ~1 degree of timing retard and power back. Finally, the additional whine of the blower is intoxicating! Search MPI LT4 Lid on YouTube and you can view many customer videos demonstrating the increase in blower whine.