Use this cnc machined aluminum spacer instead of drilling into your intake. The 1/8" NPT port can be used for meth or nitrous. Uses an o-ring seal against the throttle body.
Includes: Spacer, o-ring seal, four longer bolts.
Vehicle Fitment: 05-09 LS4 engines, 04-12 five cylinder Colorado and Canyon, If you install this on an LSJ, the supercharger needs ported.
Made in the USA