GSC Billet S3 Camshafts - Dual AVCS (08-21 STI)

$1,245.50

SKU

GSC7026S3

Skip to the beginning of the images gallery

GSC Power-Division billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual 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 machined down 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
Check AVCS advance during install - must be done by experienced engine builder

	ADV Duration	Duration @ 0.040"	Peak Lift	Center Line
Intake	280°	240°	11.55mm	130°
Exhaust	280°	241°	11.60mm	128°

Year Fitments	Subaru STI
2008	✓
2009	✓
2010	✓
2011	✓
2012	✓
2013	✓
2014	✓
2015	✓
2016	✓
2017	✓
2018	✓
2019	✓
2020	✓
2021	✓

WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings

More Information

More Information
SKU	GSC7026S3
Manufacturer's Part Number	GSC7026S3
Brand	GSC Performance