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The Grams Performance 3.15 in to 3.00 in silicone reducer coupler lets owners install the Grams Performance & Design DBW throttle body without stretching the OE boot. Made from fiber-reinforced silicone in black, it connects aftermarket intake or intercooler piping to the Grams throttle bores and is specified for 2006–2011 Honda Civic Si, Subaru BRZ, Scion FR-S and Toyota FT86 applications.
Grams Performance 3.15in to 3.00in Silicone Reinforced Reducer Coupler for 72mm Throttle Body
