Crower Valve Spring & Retainer Kit for Subaru WRX / STI
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Crower's valve train kit features strengthened steel valve springs and titanium retainers, designed for use in the cam applications with increased lift and higher revs. OEM valve springs just aren't strong enough to handle cams with increased lift, this Crower kit requires zero machine work for installation and is an affordable solution to similar setups. Kit includes 16 springs & 16 titanium retainers.
Subaru STI 2004-2007
Subaru WRX 2002-2005
Seat: 1.420" @ 60 lbs
Nose: 1.000" @ 161 lbs
Coil bind: 0.860"
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