Review posted
Reviewed by Joe R.
Verified Buyer
Good quality
Alot more sturdy than OEM, building for 450 whp noticed a huge difference in tensile strength compared to OEM
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Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.
Spring Pressure: BC1600 Seat: 1.420" @ 80 lbs / Open: 1.000" @ 178 lbs / Coil Bind: 0.850" (no machine work required)
Subaru EJ205-WRX/EJ257-STi?á
Alot more sturdy than OEM, building for 450 whp noticed a huge difference in tensile strength compared to OEM
Much nicer and thicker than stock springs. Less likely to fail.
Work like advertised, no valve float. Ej25 easy upgrade
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