Kooks stainless connection pipes for 2005–2006 Pontiac GTO LS2 6.0L are 3.00" x 3.00" OEM-style catted pieces. They serve as direct-fit connection pipes and use standard race catalysts; those standard race cats are not intended for forced-induction applications. These parts provide the OEM-style link between header systems and downstream exhaust on the specified GTO platform.
Kooks 05-06 Pontiac GTO LS2 6.0L 3in x 3in OEM Cat SS Exhaust Conn. Pipes