BC Brian Crower Valve Springs and Retainer Kit for 1JZ/2JZ Toyota Supra Vorsteiner but also improve efficiency to

but also improve efficiency to produce substantial power gains and maintain usability with factory like drivability

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This flange is machined with the integrated fire ring to provide the proper sealing and fitment between the turbine outlet and flange

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BC Brian Crower Valve Springs and Retainer Kit for 1JZ/2JZ Toyota Supra Vorsteiner but also improve efficiency toBC heavy duty springs are designed for up to 9000 rpm and 800whp, while the single springs are rated for above 800whp and an increase in spring pressure for extended rpm's. 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. Please Note: Pictures are for reference. Vehicle Fitment: 1987 1998 Toyota Supra (MK3 and MK4 with 2JZ