12-15 hp gains with Skunk2*s Tuner Series Drop In Camshafts, our professional line of high-lift, racing camshafts for Honda*s 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 Skunk2*s Tuner Series. Whats more, Tuner Series Camshafts are also the perfect addition to any high-output, turbocharged engine. Skunk2*s Tuner Series Camshafts for Honda*s K-series engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response.