GSC P-D Hyundai Genesis Coupe 2.0L Turbo (G4KF) S3 Cams 280/280 Billet (Upgraded Springs Required)

Billet S3 Camshafts That Unlock the Full High-RPM Potential of the Hyundai Genesis Coupe 2.0T G4KF

The GSC Power Division GSC7060S3 is a billet S3 camshaft set designed for the Hyundai Genesis Coupe 2.0L Turbo G4KF engine. The S3 grind represents GSC's highest-profile street and track camshaft option for the G4KF, featuring 280-degree duration on both intake and exhaust for maximum high-RPM power production. Because the S3 profile requires valve lift beyond what the factory valve springs can safely manage, upgraded valve springs are required before installation. The GSC7060S3 is machined from high-strength billet steel and is appropriate for Genesis Coupe 2.0T builds targeting 350-600 horsepower on boost.

Key Features

• GSC S3 billet camshaft set for Hyundai Genesis Coupe 2.0T G4KF engine
• 280-degree duration on both intake and exhaust for maximum high-RPM power
• Billet steel construction for superior durability and precision over reground OEM cores
• Upgraded valve springs required before installation (sold separately)
• Designed for 350-600 HP turbocharged G4KF builds
• Compatible with 2010-2014 Hyundai Genesis Coupe 2.0T all trim levels
• Sold as a camshaft set (intake and exhaust)
• Made by GSC Power Division

Fitment

Specifications

What's Included

• 1x GSC GSC7060S3 intake billet camshaft
• 1x GSC GSC7060S3 exhaust billet camshaft

About GSC Power Division

GSC Power Division specializes in high-performance camshafts, valvetrain components, and supporting hardware for Japanese performance platforms. Their billet camshaft program uses proprietary profiles developed through extensive engine dyno testing and real-world motorsport use. The S3 grind series represents the most aggressive street-usable profile GSC offers for each application, optimized for power production throughout the mid to upper RPM range on boosted platforms.

Frequently Asked Questions

Yes. Upgraded valve springs are required. The GSC7060S3 S3 profile has a lift value that exceeds the safe operating range of the factory valve springs. Installing these cams without upgraded springs risks valve float, spring binding, or spring failure. GSC Power Division offers compatible upgraded valve spring kits sold separately.

The GSC7060S3 fits the 2010-2014 Hyundai Genesis Coupe equipped with the 2.0L Turbo G4KF engine across all trim levels including 2.0T, 2.0T Premium, 2.0T R-Spec, and 2.0T Track.

GSC offers progressively more aggressive profiles from S1 through S3. The S1 is a mild street grind suitable for light bolt-on builds. The S2 adds meaningful midrange and top-end power. The S3 is the most aggressive, maximizing peak power at the expense of slight low-RPM response and requiring upgraded valve springs. For high-boost Genesis Coupe builds targeting 400+ horsepower, the S3 is the appropriate choice.

Yes, with supporting modifications. The camshafts themselves do not stress the bottom end directly. However, the increased power output enabled by the GSC7060S3 typically requires a proper tune, upgraded intercooler, and fuel system modifications to safely run on a stock rotating assembly. Many builders pair the GSC7060S3 with upgraded rods and pistons on higher-boost builds.

Yes. Installing performance camshafts with different duration and lift characteristics requires a full engine retune to properly set cam timing, boost, ignition, and fueling. Running the GSC7060S3 on a stock tune will result in poor performance and potential damage. Work with a Genesis Coupe specialist tuner for best results.

Yes. GSC designs their G4KF camshafts to retain full compatibility with the factory CVVT (Continuously Variable Valve Timing) system. The billet cam core is machined to the OEM CVVT actuator interface specifications, allowing full use of the intake variable timing system.

The GSC7060S3 S3 grind is designed for turbocharged Genesis Coupe 2.0T builds targeting approximately 350-600 horsepower. Below this range, the S2 grind provides a better power curve and idle quality for street use. Above 600 horsepower, custom or race-specific cam profiles may be required depending on the engine build.

The GSC7060S3 is sold as a matched camshaft set including both the intake and exhaust camshafts. Both cams are required to be installed together for the S3 profile to function as designed.

Installation Overview

1. Remove engine covers, disconnect battery, and drain coolant to access the valve cover
2. Remove the valve cover, timing chain tensioner, and cam sprockets
3. Loosen cam bearing caps in the correct sequence per Hyundai G4KF service manual to avoid camshaft damage
4. Remove OEM camshafts, install upgraded valve springs (required before installing S3 cams)
5. Install GSC7060S3 intake and exhaust billet camshafts with factory cam bearing caps
6. Torque cam bearing caps in sequence to Hyundai factory specification
7. Reinstall cam sprockets, set cam timing to factory specification, reinstall timing chain tensioner
8. Reinstall valve cover with fresh gasket, reconnect coolant and battery
9. Schedule a full engine tune before starting to avoid damage from incorrect cam timing calibration

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.