S2 Billet Camshaft set for USDM Subaru WRX EJ20

S2 Billet Camshaft set for USDM Subaru WRX EJ20

$1,097.25
$1,097.25 $1,097.25
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S2 Billet Camshaft set for USDM Subaru WRX EJ20
S2 Billet Camshaft set for USDM Subaru WRX EJ20
SKU: GSC7020S2

S2 Billet Camshaft set for USDM Subaru WRX EJ20

Low stock: 11
$1,097.25
$1,097.25 $1,097.25

Prop 65 Warning

This product can expose you to chemicals including Nickel, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

GSC Power-Division billet S2 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suite 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. An upgraded single spring kit will do the job under 8000 RPM. 

*Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
Product fitment
EJ205 WRX 02-05
CAMSHAFT CARD - GSC7020S2

IMAGES ARE FOR ILLUSTRATION PURPOSES ONLY.

INTAKE
ADV Duration
272°
Duration @ 0.040"
234°
Peak Lift
10.25 mm
Center Line
110.0
EXHAUST
ADV Duration
272°
Duration @ 0.040"
234°
Peak Lift
10.25 mm
Center Line
115.0

Camshafts

GSC Power-Division camshafts are engineered to maximize airflow, power production, and usable RPM while maintaining the valvetrain stability required for real-world performance. Unlike generic “one-size-fits-all” profiles, GSC camshafts are developed using application-specific analysis that considers cylinder head flow characteristics, valvetrain geometry, rocker motion, intended powerband, fuel type, and engine configuration.

Manufactured from forged barstock in house with precision-ground lobe profiles, GSC cams are trusted by engine builders, tuners, racers, and enthusiasts around the world — from street cars to record-setting drag programs. Whether the goal is improved response, broader power delivery, or extreme horsepower capability, GSC camshafts are built around one principle: maximizing performance without compromising valvetrain control.

Frequently Asked Questions

What makes GSC Power-Division camshafts different?

GSC Power-Division camshafts are engineered specifically for high-performance applications using proprietary lobe designs, premium billet materials, and advanced manufacturing processes. Every camshaft profile is developed to maximize airflow, power, durability, and valvetrain stability for its intended application.

How do I choose the correct camshaft for my application?

The best camshaft depends on your engine configuration, turbocharger size, intended RPM range, fuel type, cylinder head setup, and horsepower goals. If you’re unsure, contact our technical support team for recommendations.

Will aftermarket camshafts increase horsepower?

Yes. Properly matched camshafts can significantly improve airflow, power, torque, and RPM capability. Actual gains depend on the overall engine combination.

Do I need valve springs with aftermarket camshafts?

In many cases, yes. More aggressive camshaft profiles require upgraded valve springs to maintain valve control at higher RPMs and boost levels. Product pages will indicate whether upgraded springs are required.

Can I use GSC camshafts with OEM valve springs?

Some Stage 1 camshafts are compatible with OEM springs under certain conditions. Always verify spring requirements listed on the product page before installation.

Do I need a tune after installing camshafts?

Most performance camshaft installations benefit from ECU recalibration. A proper tune helps maximize power, drivability, and reliability.

Are your camshafts billet?

Yes. GSC performance camshafts are manufactured from premium forged billet cores for maximum strength and durability.

What is BLACK ISE?

BLACK ISE is GSC’s advanced surface treatment process designed to reduce friction and enhance durability in high-performance valvetrain environments.

GENERAL F.A.Q

Where are GSC products manufactured?

Many GSC products, including our camshafts, are designed, machined, and finished in-house at our facility in South Carolina, USA. We maintain strict quality control throughout the manufacturing process.

How long has GSC been in business?

GSC Power-Division has been serving the performance automotive industry for over 20 years, supplying racers, engine builders, tuners, and enthusiasts worldwide.

Do you sell directly to consumers?

Yes. We sell directly through our website and also through an extensive network of authorized dealers and distributors worldwide.

Does GSC cover engine damage?

GSC’s warranty covers defects in the product itself. Consequential damages, including engine damage, labor, towing, or vehicle downtime, are not covered.

Will racing void my warranty?

Products used in racing or competition environments are subject to conditions outlined in our warranty policy. Performance applications inherently involve risks beyond normal operating conditions.

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