4"/5" Downpipe-Back Race Pipe for Duramax
Upgrade your 2011-2015 LML 6.6 Duramax with the SPELAB Downpipe-Back Race Pipe. This high-performance exhaust system features a 4"/5" diameter design, ensuring optimal airflow and enhanced engine efficiency.
Key Features:
- DPF Delete: Designed for race applications, this pipe eliminates the DPF, increasing horsepower and torque.
- Muffler Included: Enjoy a deep, aggressive sound without the drone, thanks to the integrated muffler.
- Free Exhaust Tips: Comes with stylish exhaust tips to complete your installation.
Transform your Duramax's performance and sound with this premium race pipe!