Pay in 4 interest-free payments of $106.25 Learn more
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
5-Layer Reinforced Silicone Coupler (2021–2025 specific)
00" diameter tubes on various bends
Direct bolt-on without any modifications
34 Pin main connector harness (includes spare pins for input wiring)
Smooth braking feel
FERREA VALVE SPRING KIT K20C1/ K20C4 HONDA CIVIC TYPE R/ Type S Cambers 5-Layer Reinforced Silicone Coupler (2021–2025FITS: 10th Gen Honda Civic Type R 11th Gen Honda Civic Type R 10th Honda Accord 3rd Gen Acura RDX 5th Gen Acura Integra Type S 2nd Gen Acura TLX The OEM Honda valvetrain can handle bursts to 7000 rpm, but there have been failures with extended periods of continuous RPM at that level. The Ferrea valve spring kit uses a high quality PAC spring. made in the USA. It increases the seat pressure more than 20 psi on the seat to help control valve bounce and