Front pipe increased to 3 inches.
Improves power delivery and throttle response.
The K20C engine was designed for use in a normal road car and features a catalytic converter, removing this converter eliminates its restricting effects which significantly increases the engine horsepower.
HKS developed an extension pipe without the catalytic converter and a frontpipe that will connect it to a catback exhaust system.
Removing catalytic converter results in a more linear boost and throttle response.
Uses 3 inch pipes, compatible with HKS catback exhausts.
A perfect addition to intake, intercooler and other HKS products for future ECU tuning and boostup.
Decreases secondary exhaust gas pressure from turbine and reduces exhaust restriction.
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