Dynomax 89005 Header-Back Dual Exhaust Kit 2.25" Aluminized Steel Side Exit

The Dynomax 89005 is a header-back dual exhaust kit engineered for the custom exhaust builder who wants a complete, bolt-together solution for their classic truck build. Designed to attach directly to OE or aftermarket headers, this kit includes a special collector reducer that accommodates a variety of header configurations and mounting options.

Constructed from 16-gauge aluminized steel, the extra-long tailpipes deliver lasting durability and feature a split side-exit configuration, with each tailpipe exiting behind the rear tires. Smooth mandrel-style bends improve exhaust flow capacity compared to traditional crimped bends, maximizing performance. The full 2.25-inch pipe diameter runs throughout the system for consistent flow.

Key Features:

• Header-back dual exhaust system designed for custom fabrication builds
• Special reducer allows flexible connection to a variety of OE or aftermarket headers
• 16-gauge aluminized steel construction for corrosion resistance and longevity
• Extra-long tailpipes with split side exits — tailpipes exit each side of vehicle behind rear tires
• 2.25-inch intermediate pipe and tailpipe diameter throughout
• Smooth bends for improved exhaust flow over traditional crimped bends
• Includes all necessary clamps, hangers, flanges, gaskets, mounting hardware, intermediate pipes, extension pipes, and tail pipes
• All hardware and installation instructions included
• Note: Mufflers and exhaust tips are NOT included — sold separately
• UPC: 086387890052

The Dynomax 89005 dual pipe kit gives the DIY enthusiast everything needed to design and custom-fabricate a true dual exhaust system from the headers back, without the cost of a pre-configured system.