Skunk2 Ultra Series Honda/Acura K20A/K20A2/K20Z1/K20Z3/K24A2 DOHC i-VTEC Drop In D1 Camshafts12 15 hp gains with Skunk2s Tuner Series Drop In Camshafts, our professional line of high lift, racing camshafts for Hondas K series VTEC engines. Tuner Series Drop In Camshafts are designed to optimize mid range and top end horsepower and torque, with peak power moved up the RPM band. As a result, VTEC crossover is seamless, allowing for the broadest powerband possible. No other line of racing camshafts even comes close to Skunk2s Tuner Series. Whats