Ferrea 6000 Series Exhaust Valve - Subaru BRZ FA20, Scion FRS, Toyota 86 +1mm Oversize - Set of 8 - F6336 1/8" Factory Location FMIC Black

Factory Location FMIC Black

Replacement toe arm allows greater adjustment than stock

Our heavy-duty transmission detent springs offer an increase in the preload and 80% stiffer spring rate over the factory parts which aids the transmission gear selector fork

1993:Honda:Civic:Si

96-00 Honda Civic w/ K-Swap + K20A2/Z1 or K20A3 throttle bodies

Ferrea 6000 Series Exhaust Valve - Subaru BRZ FA20, Scion FRS, Toyota 86 +1mm Oversize - Set of 8 - F6336 1/8" Factory Location FMIC BlackThe 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitors best offerings. To manufacture the valves we use our exclusive two step slow forging process using EV8 stainless steel on both intake and exhaust valves. We provide a special heat treatment and stress relieving