Kooks Custom Headers 11313210 Catted X-Pipe Fits 05-10 MustangExhaust Crossover Pipe Catted X Pipe Catted X Pipe; 3 in x 2 1 2 in. Outlet; Must Be Use w Kooks Headers; SPECIFICATIONS: Clamps Included: Yes Flanged Inlet: Yes Heat Shield Attached: No Material: 304 Stainless Outlet Outside Diameter: 2. 500 in. Shape: X Pipe WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: This product can expose you to chemicals including Chromium and Nickel which are known to the State of California to