Supertech 36mm Intake Valves Subaru WRX / STI EJ Models 2002-2021 (Set of 8) Type_Suspension Custom Spring Rates and Swift

Custom Spring Rates and Swift Springs Available for most Applications

and throttle response

Threaded portion of shaft is powder coated then salt spray coated for optimum street durability (we suggest also using anti seize or other protective products when you install your coilovers for even further protection from the elements if you are exposed to snow and salt)

This heatshield from Cobb Tuning not only looks great in your engine bay

Manley valves have been the standard of the industry from their inception

Supertech 36mm Intake Valves Subaru WRX / STI EJ Models 2002-2021 (Set of 8) Type_Suspension Custom Spring Rates and SwiftPart #: SIVN 1010 8 Specs Length: 104. 35mm (Std) Head Dia: 36. 00mm (Std) Stem Dia: 5. 96mm Material: Black Nitrided Fitment: 02 17 Subaru EJ205; EJ255; EJ257