FERREA VALVE SPRING KIT K20C1/ K20C4 HONDA CIVIC TYPE R/ Type S Toyota Supra (2020+) 3" mandrel-bent aluminum tubing and

3" mandrel-bent aluminum tubing and reusable high-flow cotton air filter for improved air flow

10-Gauge 304 Stainless Steel Bracket

These track pipe exhaust are for those who are looking to maximize weight savings and improve the sound of the GR86 or BRZ

Stable physical properties over the whole temperature range

FERREA VALVE SPRING KIT K20C1/ K20C4 HONDA CIVIC TYPE R/ Type S Toyota Supra (2020+) 3" mandrel-bent aluminum tubing andFITS: 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