All HKS exhaust systems are engineered with performance, quality, and valueas primary goals. Through countless comprehensive efforts of flow analysis,dyno testing and tuning are we able to maximize horsepower gains throughout a boardpowerband, while maintaining reasonable sound levels for street use. HKSExhaust Systems that are designated for street use retain all factory emissionsequipment and conform to the California Vehicle Code 95-decibel exhaust noiselevel limit. (Note: Some HKS exhaust systems are designated for Off-Road UseOnly and are solely to be used for Off-Road purposes)

All HKS exhaust systems are engineered forhigh-performance and durability. Each bolt-on system features high-qualitymandrel bent, bake-coated aluminized steel piping and application specificmuffler assemblies to maximize horsepower and torque gains.