2011-2015 Duramax 4" Downpipe Back Exhaust - No Muffler (431017 / 432017)
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Description
Description
Features
Features
- 4" Downpipe Back Single Exhaust system. This setup does NOT include a muffler and is intended for Race Applications
- Aluminized Steel
- No Bungs
- Single Side Exit
- Easy Install - Mounts to OE Hangers
Stainless vs Aluminized
Stainless vs Aluminized
Aluminized steel is the budget-friendly choice. It has a protective coating that holds up well, but once that coating wears it will eventually rust through, especially in salted winter climates. The stainless option is T409 stainless, an automotive-grade steel built to resist rot, and it will typically outlast the truck. T409 is not polished show-grade stainless, so light surface rust or discoloration can still show up over time. That is cosmetic only and won't affect performance or service life.
Notes
Notes
- This system will NOT work with trucks equipped with the 3-Bolt Flange off the turbo direct pipe.
- The turbo direct pipe on some of the 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with v-band clamp.
Questions and Answers
Questions and Answers
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2011-2015 Duramax 4" Downpipe Back Exhaust - No Muffler (431017 / 432017)

