Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves, Ferrea uses 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 the material structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.
Ferrea Competition Plus Valves are sold individually as needed. Price is for one, single valve. 4G63 requires 16 valves. Fits all 4G63 Evo 1-9, DSM and GVR4 models.
- Single Exhaust Valve (1mm Oversize) #F1454P
- Single Exhaust Valve (Stock Size) #F1825P
- Single Intake Valve (1mm Oversize) #F1452P
- Single Intake Valve (Stock Size) #F1826P