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.

NOTE: Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition. 

Features:

• 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.

HKS Engine Spec: