Fits: 2015-2016 GM Duramax 6.6L LML
Note: This downpipe is designed for the 2015.5-2016 trucks with the 3-bolt flange connection!
The MBRP GM8428 3" Downpipe helps your 2015-2016 6.6L LML 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
Part Number: GM8428
MBRP Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.