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.
| Max Power | Max Torque | ||
| HKS (100 Octane) | 383HP / 6500rpm | HKS (100 Octane) | 376Ft-Lbs / 6500rpm |
| HKS (91 Octane) | 349HP / 630rpm | HKS (91 Octane) | 360Ft-Lbs / 6300rpm |
| Stcok (91 Octane) | 300HP / 6000rpm | Stcok (91 Octane) | 295Ft-Lbs / 4400rpm |
HKS Engine Spec:
| Intake | HKS Carbon air intake system | Blow-off | HKS SSQV Kit |
| Piping | HKS Piping Kit | Intercooler | HKS Intercooler Kit |
| Oil cooler | HKS Oil cooler Kit | Downpipe | HKS Racing Extension |
| Exhaust | HKS LEGAMAX Premium | ECU | Honda Flash Pro |
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