quick view Add to Cart Grams Performance Grams Performance 3.15in to 3.00in Silicone Reinforced Reducer Coupler for 72mm Throttle Body - G09-99-3130 MSRP: $11.99 $10.99 Grams 3.15" to 3.00" Reducer Coupler allows '06-'11 Civic Si, Subaru BRZ, Scion FRS, and Toyota FT86 Cold Air Intake system owners to install the Grams Performance & Design DBW Throttle Body without struggling to stretch the original coupler over the... Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare