GSC Power-Division Camshafts S1 - 2008-2021 Subaru STI

Spectral Performance carries a great selection of quality performance valvetrain upgrades brought to you by GSC Power Division. 

Here, you are looking at the GSC Power-Division S1 Camshafts. These camshafts are ideal for those in the 500 WHP range and will require Beehive upgraded springs. 

DETAILS:

• Intake cam duration; 264°
• Exhaust cam duration; 264°
• Intake cam duration @ 0.040: 226°
• Exhaust cam duration @ 0.040: 222°
• Intake peak lift: 10.80mm
• Exhaust peak lift: 10.50mm
• Intake center line: 125°
• Exhaust center line: 128°
• For models with dual AVCS
• Includes (4) camshafts