• S2 billet camshaft, 272/272 duration
• Built specifically for EJ20 JDM/Euro Spec STI (not compatible with USA spec engines)
• Billet core for precision and consistency
• Genuine GSC Power Division engineering

S2: A genuine step up in mid-to-upper rpm power

GSC's S2 billet camshaft is ground to 272/272 duration specifically for the EJ20 JDM/Euro Spec STI platform, positioned within GSC's cam lineup as a genuine step up in mid-to-upper RPM power. Being a billet cam rather than a re-ground factory core, this camshaft starts from a precision blank rather than being limited by the factory core's base circle and material properties. That billet construction is what lets GSC achieve consistent, repeatable lobe profiles across every cam they produce. That's exactly the kind of thoughtful design worth paying for.

What This Cam Actually Feels Like to Drive

In terms of real-world feel, this cam delivers a noticeably more aggressive idle and power delivery while staying streetable, giving you a clear expectation of how the car will behave before you commit to the install. GSC's cam lineup is specifically staged this way so you can choose the level of aggressiveness that matches your actual build and driving style, rather than guessing at a generic "stage" cam from another brand. This variant is JDM/Euro spec specific and will not work correctly on a USA spec engine, so confirm your exact engine specification before ordering. For a component this critical, that level of engineering is worth having.

Straight From Subispeed

A billet S2 cam for 2002-2014 WRX / 2004-2014 STI — a genuine step up in mid-to-upper RPM power, with genuine GSC engineering behind the lobe profile.

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