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aFe LARGE BORE HD 4in 409-SS DPF-Back Exhaust w/Black Tip 2017 GM Duramax V8-6.6L (td) L5P - 49-44085-B

aFe LARGE BORE HD 4in 409-SS DPF-Back Exhaust w/Black Tip 2017 GM Duramax V8-6.6L (td) L5P - 49-44085-B

$554.40 USD
$554.40 USD
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Shipping calculated at checkout.
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance: This Large Bore-HD exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 6" Diameter Black Intercooled Tip: Finishing off the exhaust is a 6" diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.

Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip GM Diesel Trucks 17-19 V8-6.6L (td) L5P

Fits: 2017-2019 Chevrolet Silverado 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 Chevrolet Silverado 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V)
EPA Status: N/A

Vehicle Fitment

  • 2017 Chevrolet Silverado 2500 HD
  • 2017 Chevrolet Silverado 3500 HD
  • 2017 GMC Sierra 2500 HD
  • 2017 GMC Sierra 3500 HD
  • 2018 GMC Sierra 3500 HD
  • 2018 Chevrolet Silverado 3500 HD
  • 2018 GMC Sierra 2500 HD
  • 2018 Chevrolet Silverado 2500 HD
  • 2019 Chevrolet Silverado 2500 HD
  • 2019 Chevrolet Silverado 3500 HD
  • 2019 GMC Sierra 2500 HD
  • 2019 GMC Sierra 3500 HD

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St. Paul Speed & Performance hand selects the brands we offer based on decades of experience in domestic automotive performance and modification. If you ever experience a problem with your order, our representatives are well equipped to help ensure your purchase brings satisfaction.

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