Turbo 400 TH400 TH375 M40 Transmission Shift Improver Kit - Stage 2 The Speedmaster Serpentine Pulley Kit

The Speedmaster Serpentine Pulley Kit is engineered to offer a balance of performance and value for high-performance street cars and race car applications

Manifolds are cast from steel molds

while delivering increased engine vacuum

Their strong die-cast aluminum design ensures an excellent gasket seal and dissipates heat better than many other covers

and if the motor in your Speedmaster electric water pump goes bad we have you covered with a high quality replacement

Turbo 400 TH400 TH375 M40 Transmission Shift Improver Kit - Stage 2 The Speedmaster Serpentine Pulley KitProvides very positive shifts for high performance street use or for competitive events. This model is for the enthusiast who wants the hardest, quickest possible shift.