This 3" diameter Off Road Y-pipe is exclusively for use with PaceSetter Quik Trip Long Tube Headers for 1998-2002 Camaro and Firebird with 5.7L LS1 engine (header part #70-2253, 72C2253, 70-2255, 72C2255, 70-2256 and 72C2256). The 16-gauge tubing is aluminized for longer life. The Off Road Y-pipe is designed to connect the long tube headers to the stock or stock replacement exhaust system. All clamps, necessary fasteners and instructions are included. Note: This Off Road Y-pipe will not work with other brands of long tube headers.