Fits: 2004.5-2010 GM Duramax 6.6L LLY/LBZ/LMM
The MBRP GM8424 3" Downpipe helps your 2004.5-2010 6.6L LBZ/LBZ/LMM breath by increasing the exhaust flow off your turbocharger. Removing the restrictions caused by your OEM downpipe - the MBRP replacement will lower your EGTs and increase performance. The install process is as simple as it gets from the precision bending that you'd expect from an MBRP kit.
- Improved Heat Retention & Dissipation
- Increased Exhaust Flow Over Stock
- Increased Performance
- Throatier Sound
- Faster Spool-Up