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  • MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)
  • MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)
  • MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)
MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)

MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)

$304.99 $376.75
Part no. GMCA428 In stock

Your vehicle

Year, make and model. Our techs check fitment against it before the order ships.

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended...

Full details and fitment

The details

About this part

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.

Installation Instructions
Technical Drawing
Warranty
  • Improved Flow. Bolt-on Installation.
  • Retains All Factory Mounting Points
  • Direct Fit To Stock Exhaust