2017-2019 Duramax 4" Downpipe Back Exhaust w/ Muffler (431021 / 432021)

2017-2019 Duramax 4" Downpipe Back Exhaust w/ Muffler (431021 / 432021)

Brand: Mel's Manufacturing
SKU: 431021
776.00 USD In stock Buy at Merchant

This is a 4-inch downpipe back exhaust system for 2017-2019 GM L5P 6.6L Duramax engines, including a high-flow muffler and designed for easy installation.

  • The description claims increased torque and fuel mileage.
  • The description claims improved sound quality.
Specifications
Material
Aluminized Steel, Stainless Steel
Variants (2)
  • Aluminized Steel — 776.00 USD — In stock
  • Stainless Steel — 912.00 USD — In stock

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