Duramax Magnaflow 4" Downpipe-Back Exhaust Features:
- Steel System Material
- Turbo-Back System Style
- Aluminized System Finish
- Gives Fully Customizable System
- Great Sound and Performance
Aluminized Custom Build that is Fully Customizable
Magnaflow Aluminized Custom Builder exhaust kits have all of the basic building blocks needed to help you build the system that suits your truck; including all the necessary hangers, flanges, straight-through, and mandrel-bent pipes. The Aluminized Custom Builder Series offers the most options for customization. This downpipe is made for racing events, as it gives more cooler air way to enter your engine by pushing the hotter air away and out of your system.
Specific for Street Race Use
For the street driver, custom Builder kits are the basis for a custom exhaust that allows you to purchase and install the converter, muffler, and tip(s) of your choice. While some cutting might be needed, Custom Builder kits allow you to put together a custom exhaust without the need for welding or bending any pipes; giving you a fully customized system, with a professional finish plus great sound and performance at a reasonable cost. Give your engine the best performance with this downpipe back exhaust installed.
2001-2004 Chevrolet/GMC 2500HD/3500HD 6.6L Duramax