Universal 12 Piece 2.5" DIY Aluminum FMIC Intercooler Piping Polished U-Pipe Kit with Red Couplers Made from High Quality Light Weight T6061 Aluminum. 2.5"(Outer Diameter) Piping Inlet / Outlet. Set includes: 12x Various Curved Pipes, 8x Straight Silicone Couplers 4x 90Degree Silicone Couplers and 24x T-Bolt Style Clamps. Custom DIY (Do it yourself) Piping Kit that is Perfect for all Turbo, Supercharger, Induction System DIY Projects. Color: Polished Pipes and Red Couplers.