Construction: Constructed of mandrel-bent 3" 304 stainless steel piping to reduce back pressure and improve flow. Factory Mounting Locations: 3" diameter connection pipes mount directly to OE mounting locations. Leak-Free Seal: High quality OE style flanges and band clamps are used for a complete 360 degree sealing surface. Hassle-Free Installation: The performance connection pipes are designed to fit in the stock location with an included extension pipe which allows this system to fit without modification. This system incorporates OE style hangers, flanges and includes O2 extensions for a hassle-free installation. Note: This is a "Race Only" product used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use, could be in violation of local, state and federal laws. All aFe connection pipes are engineered and manufactured in our Corona, California manufacturing facility. Twisted Steel 3 IN 304 Stainless Steel Race Series Connection Mid-Pipes w/o Cats Dodge Challenger/Charger Hellcat 15-19 SRT-8 V8-6.2L (sc) / 392 V8-6.4L Dodge Challenger/Charger Hellcat 15-18 SRT-8 V8-6.2L (sc)/392 V8-6.4L