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Polar Diesel

Polar Diesel 2017-2023 Duramax 6.6L L5P 4" Exhaust

Polar Diesel 2017-2023 Duramax 6.6L L5P 4" Exhaust

SKU: PD-1-32934142

Regular price $825.00
Regular price Sale price $825.00
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2017-2023 Duramax 6.6L 4" Polar Exhaust

Polar Diesel exhaust kits are designed to concur the elements, made from T409 Stainless Steel, our kits provide the quality your truck deserves. Our exhaust systems are designed with a hassle free, easy installation in mind! Featuring precise pre-bent exhaust hangers, stainless lap joint clamps and precise flanges, you can expect excellent fit & finish. With all of our exhaust systems you can count on reduced EGTs, improved fuel mileage, proper exhaust flow and of course increased horsepower and torque!


  • Single Side Exit
  • Muffler options
  • Easy installation
  • No Bungs
  • Stainless lap joint clamps
  • Pre-bent exhaust hangers
  • 4” Downpipe back exhaust


  • 2017-2023 Chevrolet/GMC Duramax 6.6L L5P
  • This exhaust will only fit models with the OEM style 4-bolt flange off the downpipe
  • Fits crew cab - short/long/dually
  • Must be modified to fit regular cab models
  • Depending on Box & Cab configuration, one cut will need to be made for exhaust systems optioned with a muffler.
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