Ferrea Roller Rocker and Valve Spring Kit KT4038 - K20C1 Valve (Exhaust) as flow will reduce as

as flow will reduce as the filter gains contaminants stored

5mm high compression

4P Custom Exhaust Valves (8)

All components are 100% Genuine OEM Honda

Ferrea Roller Rocker and Valve Spring Kit KT4038 - K20C1 Valve (Exhaust) as flow will reduce asThe Ferrea Roller Rocker kit will eliminate the VTEC function on your exhaust cam, and replace the OEM intake rocker with the Ferrea rocker arm. The Ferrea valve spring kit uses a high quality PAC spring Made in the USA. It increases the seat pressure and open pressure to help control valve bounce and will allow safe operation up to and beyond 9000 rpm. This is especially critical in the event of a missed gear or mechanical over rev. We recommend this