GSC S3 Cams 282/282 Billet Camshafts 2008-2018 STi (7026S3)

Product Description

7026S3

For your 2008-2018 Subaru STI

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.

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

7026S3

ADV Duration

Duration @ 0.040"

Peak Lift

Center Line

Intake

280°

240°

11.55mm

130°

Exhaust

280°

241°

11.60mm

128°