Magnaflow 18980 - 4" Aluminized Downpipe Back Straight Pipe Fits 2001-2010 Duramax **BACKORDERED NO ETA**

$720.14 $565.00

Magnaflow 18980 4" Turbo Down Pipe back exhaust for 01-10 GM 6.6L Duramax - Aluminized Steel - All Bed and Cab Configurations

Material: Aluminized Steel
Tubing O.D. Size: 4in.
System Type: Turbo-Back
TIP O.D. Size: None
TIP Quantity: Not Included
Single/Dual: Single


  • 4" Mandrel Bends
  • Straight Pipe - No Muffler
  • Aluminized Steel
  • OE Style Clamps and Hangers


  • Increased Flow
  • Increased MPG
  • Improved Horsepower
  • Improved Torque

Product Note: This product is intended for 01-07 Duramax Diesel's, however this kit will fit 07.5-10 GM LMM Duramax pickups. The hanger locations on the LMM trucks are in the same locations as previous years trucks except one at the transmission (it's there to hold the weight go the DPF and Cat) and one just behind it which is mounted to the frame (also meant to carry the weight of the DPF) and is no longer needed with this exhaust. 

Product Use Disclaimer: 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 not to hold Diesel Mafia Performance, LLC liable for unlawful vehicle operation