The "Y" pipe terminates in approximately the same location as the stock 2.8 "Y" pipe, enabling you to use a catalytic converter and a proper muffler for a mellow exhaust tone. This enables you use our 2 1/2" Cat-Back exhaust system to match the flow necessary for your high output 3.4 TDC engine. The "Y" pipe comes shipped with 3-bolt flanges to mate with your existing exhaust manifold and a 2-1/2" 3-bolt flange to mate with a 2-1/2" down pipe. This "Y" pipe is constructed of 304, 16 gauge mandrel bent stainless steel tubing. This "Y" pipe will fit both the early square port and later rectangular port TDC's.