GSC Power-Division S3 Camshafts | 2004-2007 Subaru STi (7025S3)

Billet S3 Camshaft set for Subaru EJ255/7 with Intake AVCS

GSC Power-Division billet S3 camshafts for the USDM STi and WRX with Intake only AVCS. These camshafts are built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs. Specific engine modifications are required to utilize the true potential of these camshafts including a built bottom-end (sleeved or closed deck reccomended), built/ported heads (casting must be clearanced for higher lift), and upgraded valve springs. A standalone ECU or tune with speed density is highly reccomended in order for proper idle characteristics.

Features

• Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
• Due to the lobe size, head castings will need to be filled down slightly for clearance - Please check during install
• Proper break in and running high zinc oil is a must on flat tappet engines.
• Must be installed by an experienced technician
• Intake / Exhaust ADV Duration 280° / 280°
• Intake / Exhaust Duration @ 0.040" 240° / 241°
• Intake / Exhaust Peak Lift 11.55mm / 11.60mm
• Intake / Exhaust Center Line 130° / 115°

Benefits

• Increased Horsepower Capacity

Applications

• 2004-2007 Subaru STI

What's In The Box?

• (4) Camshafts

Warranty

• Manufacturer Standard Warranty