GSC Billet S1 Camshaft Set


GSC Power-Division Billet S1 camshafts for the 2008+ STI EJ257B With Dual AVCS. Good for stock turbo or up to 500WHP(GT35R) upgrades. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

Intake 266 / 225 @ .040" / Peak Lift 10.7MM / Centerline AVCS
Exhaust 264 / 222 @ .040" / Peak Lift 10.4mm / Centerline AVCS

Due to the lobe size, head castings will need to be filled down slightly for clearance.
Proper break in and running high zinc oil is a must on flat tappet engines. Must be installed by an experienced technician
Install to OEM shim spec's for intake and exhaust

2008-2014 STI
2015-2021 STI

More Information
Color Gray
Manufacturer GSC Power Division
Price 998.75
Write Your Own Review
Only registered users can write reviews. Please, Sign in or create an account
To Top