Tomioka Rubber Terminal Protector Boots (1-2 Gauge) Vehicle Model_WRX STI Pair the spacer up with

Pair the spacer up with a Thermal Throttle Body Gasket & Intake Manifold Gasket (not all applications) for even better gains by reducing the heat transfer from your engine

Throttle body has 88 MM bolt holes pattern (Mustang 5

We suggest Supertech Valvesprings and Retainers and actually use them in some of our very own cars

Enkei RPF1 gold Whee17x8 5x114

steel brackets

Tomioka Rubber Terminal Protector Boots (1-2 Gauge) Vehicle Model_WRX STI Pair the spacer up withPart #: TR ARB001 Straight Boots This is a straight boots type which keeps terminal protected from inadvertent and accidental contact. This is enable easy identifies polarity.