2011-2015 GM 6.6L LML Duramax Stainless Down Pipe
Replace that restrictive factory down pipe with a stainless direct replacement down pipe for more flow, fuel economy, and better performance.
- Wrapped with titanium woven heat wrap with stainless steel clamps.
- 3" Mandrel-Bent.
- Reduce Exhaust gas temperatures.
- gain up to 25HP!!
- Increase fuel mileage.