PaceSetter 82-1171 Off Road Y-Pipe for Header for Chevrolet Trailblazer SS 06-09 Made from 3 inch diameter, 16-gauge aluminized tubing Mandrel bent for maximum flow Connect PaceSetter's Quik Trip Long Tube Headers to the stock or stock replacement exhaust system No cutting or welding needed, everything included for installation, for off-road use only Use with #70-2275/72C2276