Sales: 512-635-8793
Customer Service: 512-635-8824
Fax: 512-650-3663
FREE Ground Shipping on most orders over $50*

MBRP GMCA425 2001-2004 GM Duramax 6.6L LB7 3" Turbo Downpipe (50 State Legal)

Our Price: $169.99

170 reward points

Model: MBRGMCA425
Shipping Weight: 10lbs
Manufactured by: MBRP

Add to Cart:

Application: 2001-2004 GM 6.6L Duramax LB7

The MBRP GMCA425 3" Turbo Downpipe eliminates the restrictive factory downpipe in your 2001-2004 GM 6.6L Duramax LB7. Featuring a mandrel bent aluminized steel construction, the MBRP 3" Turbo Downpipe provides a smoother flow from the turbo resulting in lower EGT's and increased performance, throatier sound, and faster turbo spool-up.

Each Downpipe is coated with a satin black high-heat coating and wrapped with a high-heat thermal wrap for added protection. A durable 1/2" thick flange is used to eliminate warping and sealing issues. This Downpipe is a direct bolt-on replacement and is manufactured with precision bends for the perfect fit that you've come to expect from MBRP.


  • CARB EO# D-763
  • Reduced Temperatures
  • Increased Performance
  • Coated & Heat-Wrapped
  • Aluminized Steel Construction

    CA Residents: CARB E.O. Number on file - LEGAL for use in California.

  • Copyright © 2019 Storm Automotive Technologies. Powered by Zen Cart