2.5" to 2.75" Transition Coupler

Full-Race 2.5" x 2.75" silicone transition couplers are constructed from 3 ply fiberglass reinforced silicone with a .110" wall thickness. These couplers are extremely versatile and commonly used for Throttle Body to charge pipe connections on vehicles such as Mitsubishi Evo or K-series w/ TSX TB swap