2.0T G4KF Theta Camshafts

The GSC Power Division G4KF S3 Camshafts cams for the Hyundai G4KF Theta are designed for those with 800+ HP in mind.

• Designed for a rev range of 4500-9500 RPMs
• The S3 cams require an upgraded valve spring - GSC5062 recommended.
• Forged billet core
• Head clearancing required 

GSC Power-Division S2 billet cams for the Hyundai G4KF Theta are designed for those with 600-800 HP in mind. Gains of 40-60 HP (depending on turbo) have been seen by simply bolting the S2 cams in.

• Designed for a rev range of 3800-8000 RPMs
• The S2 cams require an upgraded valve spring.
• Forged billet core
• Head clearancing required

GSC Power-Division billet S1 cams for the Hyundai G4KF Theta are designed for those with the stock turbo up to the 550 HP range These cams will not sacrifice any bottom end loss over stock cams; nothing but gains, and will promote faster spooling of the upgraded turbos. Gains of 20-50 WHP (depending on turbo) have been seen by simply bolting the S1 cams in.

• Designed for a rev range of 3000-7500 RPMs
• The S1 cams work on the stock valve springs, but its suggested to upgrade
• Forged billet core
• May require head clearancing - check on install