CNC machined from Billet 6061 aluminum, the Crawford BPB's sandwich between the cylinder heads and the intake manifold to create longer intake runners. The lengthened intake runners enhance the volumetric efficiency of the engine which translates into an increase of 19 Horsepower, 15 Pound Feet of Torque, in addition to narrowing up the torque dip by 300RPM on a totally stock BRZ.

The Crawford Billet Power Blocks also work with any aftermarket tune, exhaust and intake components. Their original road testing was done in conjunction with our Stage 1 reflash followed by extensive dyno testing with and without a tune. Because the Power Blocks increase the volumetric efficiency through the intake manifold, the type of fuel used has no effect. If you choose to use E85 with our BPB's then you will see a larger increase in power and torque than if using pump gas. Note: We only recommend this upgrade on naturally aspirated setups.

The Crawford Billet Power Block kit consists of 23 pieces that make it a complete bolt on system which can be installed in under 30 min. In the kit you will find 2 BPB's, 4 Delrin O-rings, 11 mounting bolts, 1 nut, 4 fuel rail shield risers, and 1 support bracket for the direct injection control unit.