MBRP / MBRP Competition

2001-2004 GM 6.6L DURAMAX LB7 MBRP GMCA425 3" TURBO DOWNPIPE (50-STATE LEGAL)

2001-2004 GM 6.6L DURAMAX LB7 MBRP GMCA425 3" TURBO DOWNPIPE (50-STATE LEGAL)

MBRP / MBRP Competition

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SKU:
GMCA425
Width:
8.00 (in)
Height:
14.00 (in)
Depth:
23.00 (in)
Now: $254.99
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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. 
 

FEATURES: 

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

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John C. Verified Customer   
04-23-25

Great

Recommend this Company
5 / 5
Michael M. Verified Customer   
04-23-25

Great website and product

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5 / 5
Blake D. Verified Customer   
04-22-25

Shipping time was great although the product you guys sent was faulty. Customer service could be better.

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