Evo 10 - GSC Billet S1 Cams

GSC Billet S1 Camshafts. 4B11, Evo X

Boost and fueling take the 4B11 a long way, but at some point the limit stops being the turbo and becomes how much air the head will pass, and that is a camshaft question. The S1 is the mildest of GSC's billet grinds for this engine, adding duration and lift over the factory profile while keeping the car civil enough to drive every day. Machined from billet, so the profile stays exactly as ground.

• Billet camshafts for the 4B11
• GSC S1 profile, the mildest of the billet range
• For the Evolution X

Fits:

• Mitsubishi Lancer Evolution X (CZ4A, 2008–2015)

GSC part #GSC7010S1. Available to order; shipping shown at checkout.