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its: 2017-2019 GM L5P w/ 6.6L Duramax

If you're building an L5P Duramax, one of the first upgrades you require is the upgraded 3.5" L5P Downpipe. From the factory, the L5P comes with an extremely restrictive crushed downpipe that does nothing but raise your EGT's and rob you of power.

  • 3.5" Downpipe
  • Full Stainless Steel
  • Comes With High-Quality Heat Wrap Kit
  • Replaces Restrictive 'Crushed' OE Downpipe and Cat
  • Connects to Factory Turbo Outlet
  • Works with Any Aftermarket Race Exhaust System OR OEM System
  • 4-Bolt Flange

Part Number: L5P-EXH-A004

2017-2019 Duramax 3.5" L5P Downpipe (L5P-EXH-A004)

SKU: L5P-EXH-A004
Regular price $477.99
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its: 2017-2019 GM L5P w/ 6.6L Duramax

If you're building an L5P Duramax, one of the first upgrades you require is the upgraded 3.5" L5P Downpipe. From the factory, the L5P comes with an extremely restrictive crushed downpipe that does nothing but raise your EGT's and rob you of power.

  • 3.5" Downpipe
  • Full Stainless Steel
  • Comes With High-Quality Heat Wrap Kit
  • Replaces Restrictive 'Crushed' OE Downpipe and Cat
  • Connects to Factory Turbo Outlet
  • Works with Any Aftermarket Race Exhaust System OR OEM System
  • 4-Bolt Flange

Part Number: L5P-EXH-A004