AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System 11-16 GM 6.6L Duramax LML
SKU: 46371158902

AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System 11-16 GM 6.6L Duramax LML

Sale price$391.63 Regular price$435.15
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System 11-16 GM 6.6L Duramax LMLAesthetics and function. Thats what you get with aFes Large Bore HD 4 409 Stainless Steel DPF Back Exhaust system for your GM Duramax. This system is constructed from 4" mandrel bent 409 stainless steel tubing and uses high quality band clamps and OE style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt on bracket that supports the driverside tailpipe. This provides for a quick, hassle free installation with no

Aesthetics and function. That’s what you get with aFe’s Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust system for your GM Duramax. This system is constructed from 4" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driverside tailpipe. This provides for a quick, hassle-free installation with no modification necessary. Also included in this exhaust system is dual massive 6" high temp black powder-coated 304 stainless steel tips with a laser-cut stainless steel aFe power badges. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value. Not only that, you get the choice of either massive black tips, or massive polished tips.

Single To Dual Exhaust Conversion:

This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.

Simple Installation:

All systems use factory mounting locations providing stability and hassle-free installation.

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 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.

OPTIONS:
  • 6” Massive Polished Tips: Dual high luster, polished 304 stainless steel slash-cut tips. The tips feature a drain port on the bottom to keep rust and corrosion away.
  • 6” Massive Black Tips: Dual powder-coated high temp black 304 stainless steel exhaust tips. The tips feature a drain port on the bottom to keep rust and corrosion away. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46371158902

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Phillip
Waukegan, US
★★★★★ 5
Works for hiding cables
Color: Black, Size: Standard
Worked great to manage my cables to my pc setup. My double wide surge protector fit in there just right. Easy to mount with the holes and the bottom to fit a screw driver or power drill. Not too flimsy.
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Reviewed in the United States on March 30, 2026
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TYB FET
Pawtucket, US
★★★★★ 5
Sturdy and big
Color: White, Size: Extra Deep
Worked perfect. Sturdy and fit the UPS we are using
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Reviewed in the United States on May 8, 2026
M
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Minh
Bozeman, US
★★★★★ 5
N/A
Color: Black, Size: Standard, Color: Black, Size: Standard
Clean Looking,
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Reviewed in the United States on May 13, 2026
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Summer C
Fort Morgan, US
★★★★★ 5
Got the job done
Color: Black, Size: Standard
Solid product. Fast delivery
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Reviewed in the United States on January 12, 2026
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L.K.
Bozeman, US
★★★★★ 5
High quality, reliable
Model: Pop up outlet-black
The units looked really cool and were of excellent quality. They popped up reliably albeit slowly which was fine with me. I was really looking forward to using these in a built in cabinet we're making but they did not fit where I wanted them so I had to send them back. I would buy these again if I ever had a project that needed them.
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Reviewed in the United States on December 12, 2025

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