GSC Power-Division Billet R1R Rally Camshafts Evo 9 MIVEC 7009R1R

Vehicle Fitment

• 2006 Mitsubishi Lancer Evolution IX (MIVEC 4G63T)

Fitment Notes

• Designed specifically for use with a 34-36mm turbo restrictor plate (rally/motorsport-spec applications)
• Upgraded valve springs required due to the aggressive lift and profile design
• If using aftermarket cam gears (especially AEM), verify bolt length - some gears are too thick for the OEM bolt on billet cams; a 40mm underhead-length bolt may be necessary
• Sold as a pair (intake and exhaust cams)

Features

• Full billet construction, cut and ground in-house on precision CNC machines
• Rally-specific "R1R" profile tuned around restrictor-plate airflow limitations for optimal power delivery within a 3,000-7,500 RPM band
• Dark nitride coating for wear/fatigue resistance, lubricity, and corrosion resistance

Specifications

• Designed RPM Range: 3,000-7,500 RPM
• Restrictor Compatibility: 34-36mm
• Construction: Full billet

Included Components

• 1x Intake Camshaft
• 1x Exhaust Camshaft

Product Description

The GSC Power-Division 7009R1R is a billet rally camshaft set built specifically for the 2006 Mitsubishi Evolution IX MIVEC engine, designed around the airflow characteristics of a 34-36mm turbo restrictor plate as used in FIA-regulated rally competition. The profile targets a 3,000-7,500 RPM power band, optimizing the engine's response and output within a restricted intake environment.

Machined entirely in-house from billet stock, these cams carry GSC's dark nitride coating for improved wear resistance and durability under sustained competition use. Sold as a matched intake/exhaust pair, this cam set requires upgraded valve springs due to its aggressive lift, and Evo 9 owners running aftermarket cam gears should check bolt length compatibility before installation.