Ferrea 6000 Series Exhaust Valve - 02-05 WRX EJ20; 04-21 STI EJ257 Stock Size - Set of 8 - F6075 Radiators heat treated

SKU: 9141465475

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Ferrea 6000 Series Exhaust Valve - 02-05 WRX EJ20; 04-21 STI EJ257 Stock Size - Set of 8 - F6075 Radiators heat treatedTECH NOTE: These Ferrea Valves must be used with Ferrea Valve Locks # K10061. The 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

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