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GSC S1 Camshaft Set EJ25 Intake AVCS WRX STI FXT LGT GSC S2 Camshaft Set EJ25 Intake AVCS WRX STI FXT LGT GSC S3 Camshaft Set EJ25 Intake AVCS WRX STI FXT LGT
The GSC Power-Division Billet Stage 1 camshaft set are manufactured specifically to fit the USDM STI and WRX with Intake only AVCS. The GSC S1 cams are designed to create more power and torque across the entire rpm range without reducing any low end power. The cams are a great choice for upgraded stock frame turbochargers or vehicles with upgrades that produce up to 500 Wheel Horsepower. Upgraded valve springs are required (Do not reuse OEM); Beehive valve springs are recommended but not required. Due to the larger lobe size of the cams, the head casting may require filing for clearance.

Specs:
  • Intake 268 / 225 @ .040" / Peak Lift 10.8mm / Centerline AVCS
  • Exhaust 266 / 225 @ .040" / Peak Lift 10.4mm / Centerline 113


*Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
*Proper break in and running high zinc oil is a must on flat tappet engines. Must be installed by an experienced technician*
The GSC Power-Division Billet Stage 2 camshaft set are manufactured specifically to fit the USDM STI and WRX with Intake only AVCS. The GSC S2 cams are designed for 500+ Wheel Horsepower built EJ25 engines with ported heads and supporting engine management. Upgraded valve springs are required (Do not reuse OEM); Beehive valve springs are recommended but not required. Due to the larger lobe size of the cams, the head casting will require filing for clearance.

Specs:
  • Intake 272 / 230 @ .040" / Peak Lift 10.8mm / Centerline AVCS
  • Exhaust 272 / 232 @ .040" / Peak Lift 10.4mm / Centerline 115


*Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
*Proper break in and running high zinc oil is a must on flat tappet engines. Must be installed by an experienced technician*
*Requires upgraded valve springs*
The GSC Power-Division Billet Stage 3 camshaft set are manufactured specifically to fit the USDM STI and WRX with Intake only AVCS. The GSC S3 cams are designed for 750-1000 Wheel Horsepower built EJ25 engines with a rev range of 4500-9500rpms. Certain modifications are required to utilize the potential of the Stage 3 camshafts such as ported heads and supporting engine management. Upgraded valve springs are required (Do not reuse OEM); Beehive valve springs are recommended but not required. Due to the larger lobe size of the cams, the head casting will require filing for clearance.

Specs:
  • Intake 282 / 240 @ .040" / Peak Lift 11.3mm / Centerline AVCS
  • Exhaust 282 / 240 @ .040" / Peak Lift 11.3mm / Centerline 113

*Check Pictures for cam placement. Long nose= Left Side, short nose = Right Side
*Proper break in and running high zinc oil is a must on flat tappet engines. Must be installed by an experienced technician*
*Requires upgraded valve springs*
Kelford Cams R-199-A High Performance Cam for All Subaru 2.5L Single AVCS Engines Kelford Cams R-199-B Hot Street Performance Cams for All Subaru 2.5L Single AVCS Engines Kelford Cams R-199-C Hot Street High HP Cams for All Subaru 2.5L Single AVCS Engines
Kelford Cams for All Subaru 2.5L Single AVCS Engines. The R-199-A is designed to suit mild turbo upgrades featuring a 256 Intake / 260 Exhaust Duration. Kelford Cams for All Subaru 2.5L Single AVCS Engines. The R-199-B is a hot street cam setup designed for 400-500 horsepower range featuring a 264 Intake / 260 Exhaust Duration. Kelford Cams for All Subaru 2.5L Single AVCS Engines. The R-199-C is a hot street cam setup designed for high horsepower engines that are built and feature ported heads. These cams feature a 272 Intake / 268 Exhaust Duration.
Kelford Cams R-199-D Drag Racing High HP Cams for All Subaru 2.5L Single AVCS Engines Cosworth S2 278 / 274 Cams For EJ25 Single AVCS 2004-07 Subaru STI, 06-14 WRX, 05-12 LGT & 04-13 FXT Cosworth Spec S2 AVCS Camshafts For DBC Japan / European Cylinder Heads (278 INT / 274 EXH)
Kelford Cams for All Subaru 2.5L Single AVCS Engines. The R-199-D is a drag racing cam setup designed for high horsepower engines that are built and feature ported heads. These cams feature a 280 Intake / 278 Exhaust Duration. The Spec S2's for the single AVCS Subaru EJ25's feature a 278° duration intake cams with 10.7mm of lift and the 274° duration exhaust cams with 10mm lift. Cosworth's cams are the perfect compliment to CNC Ported Big Valve Cylinder Heads. Cosworth cams are profiled to increase boost response thereby increasing engine torque and power and are fully compatible with our CNC Ported Big Valve Cylinder Heads. The Spec S2's for the Japanese / European AVCS drive by cable models feature a 278° duration intake cams with 10.7mm of lift and the 274° duration exhaust cams with 10mm lift.  Cosworth's cams are the perfect compliment to CNC Ported Big Valve Cylinder Heads. Cosworth cams are profiled to increase boost response thereby increasing engine torque and power and are fully compatible with our CNC Ported Big Valve Cylinder Heads.
   
 
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