GSC Power Division 7010S2EX Billet S2 Exhaust Camshaft for Mitsubishi Evo X 4B11

Vehicle Fitment

• 2008-2015 Mitsubishi Lancer Evolution X GSR (4B11T, Dual MIVEC, AWD)
• 2008-2015 Mitsubishi Lancer Evolution X MR (4B11T, Dual MIVEC, AWD)

Fitment Notes

• Exhaust camshaft only - this is a single camshaft for builders replacing the exhaust cam independently or pairing it with a separately purchased intake cam; the complete S2 intake and exhaust set is GSC 7010S2.
• Requires a valve spring upgrade - the S2 profile exceeds stock spring capability; do not install on stock valve springs.
• Compatible with both GSR (SST) and MR (twin-clutch) Evo X variants; both use the same 4B11T Dual MIVEC head configuration.
• The S2 profile is compatible with the stock exhaust MIVEC system; no fixed cam gear or locked MIVEC is required (unlike the S3 exhaust profile).
• Verify cam gear compatibility and MIVEC calibration with your tuner before installation at elevated boost and RPM targets.

Features

• Full billet forged core - turned from solid billet bar stock on dedicated CNC machining centers for superior material density and dimensional accuracy versus cast camshafts.
• Dark nitride coating on all lobe and journal surfaces for enhanced wear resistance, improved lubricity, and corrosion protection.
• 274° advertised duration with 11.00mm peak lift - optimized for the 3,800-8,500 RPM operating range targeted at 600+ HP builds.
• S2 exhaust lobe profile delivers 40-80 WHP gains (depending on turbo and supporting modifications) over stock camshaft specifications.
• Lobe profile designed and validated through real-world dyno and track testing to maximize top-end power while maintaining acceptable drivability.
• 100% manufactured in the USA on GSC's own CNC grinding equipment.

Specifications

• Application: Mitsubishi Lancer Evolution X 4B11T (2008-2015)
• Position: Exhaust (single camshaft)
• Cam Profile: S2 Billet
• Advertised Duration: 274°
• Duration @ 1mm: 232°
• Peak Lift: 11.00mm
• Centerline: 120°
• Designed RPM Range: 3,800-8,500 RPM
• Target Power Level: 600+ HP
• Core: Forged Billet
• Coating: Dark Nitride
• Origin: Made in USA

Included Components

• 1x GSC Power Division Billet S2 Exhaust Camshaft for Mitsubishi 4B11T Evo X

Product Description

The GSC Power Division 7010S2EX is the exhaust camshaft from GSC's renowned S2 billet cam set for the Mitsubishi Lancer Evolution X 4B11T Dual MIVEC engine, sold here as a single camshaft for builders who need to replace or upgrade the exhaust cam independently. The S2 exhaust profile delivers 274° of advertised duration with 11.00mm peak lift and a 120° centerline - purpose-designed for the 3,800-8,500 RPM operating band targeted at 600+ HP builds on the Evo X platform. Gains of 40-80 WHP over stock have been documented depending on turbo selection and supporting modification level, simply from the cam swap alone.

Built from a forged billet core and ground on GSC's dedicated CNC grinding machines in the USA, the 7010S2EX features a dark nitride coating across all lobe and journal surfaces for improved wear resistance, lubricity, and corrosion protection versus uncoated alternatives. The S2 exhaust profile retains full compatibility with the Evo X's stock exhaust MIVEC system - no fixed cam gear or MIVEC lock-out is required, unlike the more aggressive S3 exhaust profile. Valve spring upgrade is required; do not install on OEM springs. The matching intake cam is available separately as GSC 7010S2IN, and the full intake/exhaust pair as GSC 7010S2.

Whether you're replacing a single camshaft or strategically mixing cam profiles, the 7010S2EX drops directly into any 2008-2015 Evo X GSR or MR with upgraded valve springs and proper MIVEC calibration, making it a straightforward high-output upgrade for any serious 4B11T build.