This HKS decat downpipe, designed for the K20C1 engine of the Honda Civic Type R FK8, fits as a direct replacement for the original catalyst and front pipe in order to increase by 25% the volume of the entire system for optimal exhaust flow. Fitted from the turbocharger to the catback front section, this HKS downpipe, made of S304 stainless steel, has a 3" / 76mm two-part structure  to maintain sufficient backpressure for optimal response time and for a massive power gain.

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Direct mounting

100% S304 stainless steel

Average gain on stage 1 tuned engine : 49hp

25% larger volume than OEM

3" / 76mm diameter

Aggressive sound

Mounting hardware included

Install instructions included

Made in Japan