Billet S1 Camshaft set for Subaru EJ257 Dual AVCS
GSC Power-Division billet S1 camshafts for the 2008+ STI EJ257B With Dual AVCS. Good for stock frame turbo or up to 500 WHP (GT35R) upgrades. Upgraded valve springs are required; Beehive valve springs are recommended but not required.
NOTE: Due to the lobe size, head castings will need to be filed down slightly for clearance – Please check during install
Features
- Intake/Exhaust Adv Dur – 264/264
- Intake/Exhaust Dur @ .040″ – 226/222
- Peak Lift – 10.80mm/10.50mm
- Center Line – 125/128
Benefits
- Good for stock frame turbo or up to 500 WHP
Applications
- 2008-2021 Subaru STI
What’s In The Box?
- (4) Camshafts
Warranty
- Manufacturer Standard Warranty