The Ferrea valve spring and retainer kit is designed as a complete intake and exhaust combination for an upgraded cylinder head. It includes precision-wound dual valve springs, titanium retainers, seat locators and steel valve locks.
The kit is a direct bolt-on solution and is designed to provide added cylinder-head safety under high pressure, revs and temperatures.
- Full 64-piece kit: 2 x 16 valve springs for intake and exhaust
- 16 titanium retainers
- 16 seat locators
- 16 steel valve locks
- Made in USA
Suitable for: Subaru Impreza II (GD/GG) / II (STI/GDE/GDF) / III (GE/GV) / III (GH/GR) / III (STI/GRB), Subaru Wrx I (GJ/V1) / I (STI/VAB/VAF/VAG).
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