Ferrea Competition Plus Exhaust Valve - Honda Civic Type-R K20C1 Stock Size - Set of 8 - F2394P 3.75" to 4.0" cost-effective yet still high performance

cost-effective yet still high performance alternative to our Titanium Stud Kits

2021:Nissan:Altima:SR

Adjustable Gate Spacing allows a reduction from 5% to 40% narrower than stock on the '09-'11 Si and '07-'11 FD2/FN2 Type R and 10% wider to 30% narrower than stock on the '06-'08 Si

2014:Mercedes-Benz:CLA250:4Matic

Min Tubing Diameter to 1/2 in

Ferrea Competition Plus Exhaust Valve - Honda Civic Type-R K20C1 Stock Size - Set of 8 - F2394P 3.75" to 4.0" cost-effective yet still high performanceFerrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8 Z18, which provides high tensile strength. An exclusive two step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat treated and stress relieved over a 48 hour period, which is the