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MBRP S6004PLM 4" Turbo Back Aluminized exhaust for 01-09 GM 6.6L Duramax - No Muffler - 07-09 LMM Duramax's Require DPF delete Module/Programmer to work properly - See below for details - Built to fit Extended Cab/Crew Cab Short and Long Bed Trucks - Will require cutting on most trucks
Features - 4" Mandrel Bends
- No Muffler - Straight Pipe from Turbo back.
- OE Style Clamps and Hangers
- 3 Year Warranty
Benefits - Increased Flow
- Increased MPG
- Improved Horsepower
- Improved Torque
Selection of tuners that are necessary to make this exhaust work on 07-09 LMM w/o throwing engine codes Please note, this exhaust is built for 01-07 Duramax trucks, but fits the 07-09 LMM Duramax. There is one hanger that won't line up at the transmission, it's there to hang the 50 lbs. of DOC & DPF and will not be used, as you are replacing it with 10 lbs of pipe. Product Use Disclaimer for 07-09 LMM:
These components have been designed and are intended for closed course competition only! It becomes the sole responsibility of the Customer to ensure that the use of their vehicle and items purchased comply with federal, state, and local regulations. Performance products are legal in California only for sanctioned closed course racing vehicles, which may never be used on a public highway. Customer assumes all risks and expenses relating to unlawful vehicle operation on public roads. By purchasing this product, you have agreed to hold Advanced Flow Engineering, nor Alligator Diesel Performance, LLC liable for unlawful vehicle operation. | 
