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 jurisdic...

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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.

  • 6.6L Duramax (LLY/LBZ/LMM), 3" Black Series
  • Chevrolet Silverado 2500 (05-09)
  • 6.6L Duramax (LLY/LBZ/LMM), 3" Black Series
  • Chevrolet Silverado 2500 (05-09)

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