This spacer increases the air volume entering the engine. It has been shown to aid in cylinder filling at lower RPMs, smooth throttle response, build boost earlier, and extend the effective wave pulse of the intake charge. In the dyno charts shown above, paired with our Throttle Body Spacer, the gains are impressive: over 20 ft-lbs of torque and a significant improvement in the horsepower curve.

The spacer includes eight 1/8" NPT threaded ports, which can be used for aftermarket injection setups, such as Aquamist. For those not needing these ports, plugs are included.