GSC P-D 4G63T EVO 1-3/ DSM 90-99 S1 Cams 268/268 Billet

GSC Power Division is well-known for making performance engine components, and their S1 camshafts for the 4G63T engine are a popular choice for tuners and racers. If you're looking to get more out of your 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, or Mitsubishi Galant, these cams are designed to help you achieve that goal. They are specifically designed for the 4G63T engine found in these vehicles, offering a noticeable bump in performance over stock.

These camshafts are made from solid billet material, which is a strong foundation for performance cams. The S1 grind features a 268-degree intake and 268-degree exhaust duration, a common setup for a street-driven car that still sees track time. This grind offers a good balance, providing improved airflow and cylinder filling without requiring extensive modifications to the valvetrain or making the car difficult to drive daily. You'll notice improved throttle response and a broader powerband, especially in the mid-to-upper RPM range.

When installing these camshafts, it's important to ensure your valvetrain is in good condition. You'll want to check your valve springs and retainers to make sure they can handle the increased lift and duration. While these are a direct replacement for your stock camshafts, it's always a good idea to consult the manufacturer's installation instructions for specific details and recommendations. Please note that these camshafts are not CARB approved and cannot be shipped to California.