GSC P-D Subaru EJ255/EJ257 (USDM) w/Intake AVCS S2 Cams 272/272 Billet

This is a set of GSC Power Division S2 camshafts specifically for the 2004-2007 Subaru Impreza models equipped with the EJ255 or EJ257 engine and Intake AVCS. These camshafts are a significant upgrade for enthusiasts looking to extract more power from their vehicle's engine. They feature a 272-degree duration on both the intake and exhaust sides, which helps to keep the valves open longer, allowing for a greater volume of air and fuel mixture into the cylinders and exhaust gases out more efficiently.

Constructed from solid billet material, these camshafts are built to withstand the increased stresses of a performance-oriented engine. The S2 profile is a popular choice for those seeking a noticeable improvement in horsepower and torque, particularly in the mid to upper RPM range, without sacrificing too much drivability for daily use. The 272 duration is a well-balanced specification that offers a substantial performance gain over stock camshafts. Installation involves replacing the factory camshafts, and it's recommended to consult the manufacturer's instructions for proper timing and setup, especially considering the Intake AVCS system on your USDM EJ255 or EJ257 engine.

When upgrading your camshafts, it's often beneficial to consider other supporting modifications to maximize the gains and ensure the longevity of your engine. This includes ensuring your valvetrain components are in good condition and that your engine management system is tuned to take full advantage of the new camshaft profile. These GSC Power Division S2 cams are a well-built component designed to raise the performance ceiling of your Subaru Impreza's engine.