Dynatech SuperMAXX Stainless Steel Race Mid Pipes (Non-Catted) are the perfect item to combine with your Dynatech SuperMAXX Headers for a complete bolt-on installation on your vehicle. Designed for racing and maximum flow, these SuperMAX Intermediate pipes eliminate your catalytic converter(s). They outflow the OEM mid-pipes by a wide margin, resulting in improved power. Designed with high quality "ball and socket" connections, this intermediate pipe will connect directly to your Dynatech SuperMAXX Long Tube Headers and then to your factory or aftermarket cat-back exhaust. The part number for this item is 728-73330 and it fits 2005-2015 Dodge Challenger Charger SRT-8 (6.1 and 6.4 V8 Models) with Dynatech SuperMAXX Long Tube Headers. This item is not designed to bolt up to OEM Exhaust Manifolds, only Dynatech SuperMAXX Headers (Dynatech Header part 728-73310, which is sold separately).