Our stage 4 power package Replaces our Shorty Headers with Long tube Headers to give your M156 motor peak performance.
Supplement the 82mm Kit for the 85mm Kit for even more power!
Add performance spark plugs and thermal gasket set for peak performance.
Add our E85 Kit with Injectors for an additional 40+ HP!
Our intake spacer kit also nets you approximately 15hp when paired with our intake filters!
Estimated Horsepower: 600HP 550TQ
- VR7 Tune
- Intake Filters
- Row Airbox Inserts
- 82mm Throttle body Kit
- Light weight Crank Pulley
- Long tube headers
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