Ferrea Competition Plus Exhaust Valve - 91-98 240SX, 95-99 Altima KA24DE Stock Size - Set of 8 - F1837P Cherry Blossom Inspiration for the StealthBox Intake

Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015+ WRX

Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage

Hawk 1990-1990 Mazda RX-7 GXL (w/Elec Adjust Susp) HPS 5

Torque Solution Solid Billet Shifter Bushings: Subaru 5 Speed (Inc

Ferrea Competition Plus Exhaust Valve - 91-98 240SX, 95-99 Altima KA24DE Stock Size - Set of 8 - F1837P Cherry Blossom Inspiration for the StealthBox IntakeFerrea 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