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GSC Power-Division billet S2 camshafts for the EJ20 JDM/EURO 2.0L STi. These cams are built to suit the high horsepower Subis. With a power range of 500 WHP and up, you need some certain mods to utilize the true potential of the S2s: built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install

GSC Power-Division billet S1 camshafts for the USDM 2010-2012 LGT with Low mount turbo W/ oil scavenge pump on the back of the head. These will not drop any low end power, and will create more power and torque across the entire RPM range. Good for stock frame upgraded turbos or up to 500 WHP upgrades. Upgraded valve springs are required; Beehive valve springs are recommended, but not required.

GSC Power-Division Billet S3 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suite the high horsepower Subys. With a power range of 700WHP and up, you need some certain mods to utilize the true potential of the S3s. Built motor, with a built/ported head, and a good engine management system. Beehive valve springs are recommended.

GSC Power-Division Billet S2 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suite the high horsepower Subys. With a power range of 500WHP and up, you need some certain mods to utilize the true potential of the S2s. Built motor, with a built/ported head, and a good engine management system. Beehive valve springs are recommended, but a upgraded single spring kit will do the job under 8000 rpm.

GSC Power-Division Billet S1 camshafts for the EJ205 WRX Version 5 and 6. These will not drop any low end power, but actually cause faster spool of the turbo, creating more power and torque across the entire rpm range. Good for stock turbo or up to 500WHP upgrades. These cams require upgraded valve springs to keep everything safe at high rpm.

GSC Power-Division Billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suite the higher horsepower Subys. With a power range of 750WHP and up, you need some certain mods to utilize the true potential of the S3s. Built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division Billet S2 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suite the higher horsepower Subys. With a power range of 500WHP and up, you need some certain mods to utilize the true potential of the S2s. Built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division Billet S1 camshafts for the 2008+ STI EJ257B With Dual AVCS. Good for stock turbo or up to 500WHP(GT35R) upgrades. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division Billet S3 camshafts for the USDM STi and WRX with Intake only AVCS. These cams are built to suite the high horsepower drag Subys. With a power range of 750-1000WHP and a rev range of 4500-9500rpms, you need some certain mods to utilize the true potential of the S3s. Built motor, with a built/ported head (clearanced for lift), and a standalone engine management system. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division Billet S2 camshafts for the USDM STi and WRX with Intake only AVCS. These cams are built to suit the high horsepower Subys. With a power range of 500WHP and up, you need some certain mods to utilize the true potential of the S2s. Built motor, with a built/ported head, and a Turbo capable of supporting 500+whp. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division Billet S1 camshafts for the USDM STi and WRX with Intake only AVCS. These will not drop any low end power, and will creating more power and torque across the entire rpm range. Good for stock frame upgraded turbos or up to 500WHP upgrades. Upgraded valve springs are required; Beehive valve springs are recommended but not required.

GSC Power-Division billet S3 camshafts for the EJ20 JDM/EURO 2.0L STi. These cams are built to suit the highest horsepower drag Subis. With a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs, you need some certain mods to utilize the true potential of the S3s: built motor, with a built/ported head (clearanced for lift), and a standalone engine management system. Upgraded valve springs are required; beehive valve springs are recommended but not required.

262°/264° | 11.40mm/11.40mm Valve Lift

272°/276° | 11.60mm/11.60mm Valve Lift

280°/286° | 11.80mm/11.80mm Valve Lift

Piper Cams are one of Europe's most successful and experienced performance camshaft designers and manufacturers. Their experience spans more than 40 years servicing high calibre customers in research, top level motor racing and the mainstream motor industry, all on a strictly confidential level.

Piper Cams are one of Europe's most successful and experienced performance camshaft designers and manufacturers. Their experience spans more than 40 years servicing high calibre customers in research, top level motor racing and the mainstream motor industry, all on a strictly confidential level.

GSC Power-Division billet N1 camshafts for the EZ36 Engine with Exhaust AVCS deleted (Billet Adjustable Gears now available).

GSC Power-Division billet S1 camshafts for the EZ36 Engine with Exhaust AVCS deleted (Billet Adjustable Gears now available).

The GSC Power-Division High Pressure Conical Valve Spring with Ti Retainer for Subaru EJ platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats.

The GSC Power-Division Dual Conical Valve Spring Kit with Ti Retainer & Chromoly Seats for the Subaru EJ platforms includes 16 titanium retainers, 16 dual conical valve spring sets, and 16 chromoly valve spring seats.

FOR DRAG RACING USE ONLY

GSC cylindrical single valve spring kit for the Subaru turbo EJ WRX and STi. Made for the Suby owner that daily drives their hot rod and keeps the boost and revs down. These Springs are the same quality and consistency as our popular beehive spring kit. The nano-peened AS50 round wire will perform with a RPM limit of 8200 and boost levels up to 32PSI on S1 or S2 profile cams. Strict quality control on the springs and the CNC machined Titanium retainers give you peace of mind that your valvetrain is always under control.

GSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Our beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is our spring has the highest level of spring load retention while still maintaining good fatigue threw out the life of the spring. Only the best materials go into the GSC Power-Division Beehive valve spring. Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness.

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

High horsepower, high EGT set ups that need a valve that will last in 2000°F conditions

High horsepower, high EGT set ups that need a valve that will last in 2000°F conditions

The GSC Power-Division Beehive Spring Kit with Titanium Retainers for the Subaru 2015 WRX, BRZ and Scion FRS includes 24 titanium retainers, 24 beehive valve springs, and 24 spring seats. Our beehive spring is made with an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. These springs have the highest level of spring load retention while still maintaining good fatigue throughout the life of the spring. Beehive springs allow for the use of a smaller, lighter retainer allowing for higher RPM and more valve control. This is absolutely the most lightweight, strongest spring kit for the FA20 platform

The GSC Power-Division Single Cylindrical Valve Spring Kit with Ti Retainers for the Subaru 2015+WRX, BRZ, Scion FRS and Toyota FT86 using the new 2.0L NA boxer engine includes 16 titanium retainers, 16 cylindrical valve springs, and 16 spring seats. These round wire springs still have the same high quality attention to detail as our popular beehive kits. The GSC5756 is Nano peened and batched according to seat pressure within our specs. The lightweight titanium retainers are CNC machined with tolerances and repeatability that are unmatched by other brands. This keeps a consistent seat pressure across the head for ultimate reliability and performanc

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

For those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions.

Are for those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions.

Are for those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions.

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves

Industry standard for sport compact performance valves