Skunk2 Racing Pro Series K20/K24 Exhaust Cam GearAn engines camshafts must be set at their proper positions relative to the crankshaft in order to maximize horsepower. The Pro Series Exhaust Cam Gear for Honda's K20 K24 engines enables serious tuners to optimize horsepower and torque by being able to further adjust camshaft timing, allowing them to tailor the power curve appropriately. Thanks to laser etched timing and directional marks, precise camshaft adjustments can be made quickly and easily.