Ferrea 6000 Series Intake Valve - Subaru BRZ FA20, Scion FRS, Toyota 86 Stock Size - Set of 8 - F6337 Oil Filter BlocksCooling High Flow Filter - increased

High Flow Filter - increased power and fuel economy WRX 2002-2005 Stage1 Gains: 15%HP / 20%TQ

2006:Subaru:Forester:XT Limited

You will need to connect the AC Compressor to the stock engine bay wiring and install a relay (4 wires) to control the AC compressor clutch

* This is for built motors with large cams

2003-2008 Honda Element

Ferrea 6000 Series Intake Valve - Subaru BRZ FA20, Scion FRS, Toyota 86 Stock Size - Set of 8 - F6337 Oil Filter BlocksCooling High Flow Filter - increasedThe 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