SKU: 19592244906

6.6L Duramax LML Downpipe-Back Race Exhaust | 2011-2015 GMC/ Chevrolet

Sale price$247.50 Regular price$275.00
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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

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Description

6.6L Duramax LML Downpipe-Back Race Exhaust | 2011-2015 GMC/ ChevroletVehicle Compatibility Years: 2011 2015 Makes: Chevrolet Silverado, GMC Sierra Models: 2500, 3500HD Engine: 6. 6L Duramax LML (diesel) Body: Pickup only Note: This exhaust system is not compatible with Cab & Chassis trucks or newer 2015 models featuring a 3 bolt flange. Always double check the fitment details before purchasing. Performance and Application By removing both the catalytic converter and DPF filter, this system enhances exhaust flow

Vehicle Compatibility

  • Years: 2011-2015
  • Makes: Chevrolet Silverado, GMC Sierra
  • Models: 2500, 3500HD
  • Engine: 6.6L Duramax LML (diesel)
  • Body: Pickup only
Note: This exhaust system is not compatible with Cab & Chassis trucks or newer 2015 models featuring a 3-bolt flange. Always double-check the fitment details before purchasing.

Performance and Application

By removing both the catalytic converter and DPF filter, this system enhances exhaust flow significantly. As a result, you will notice improved fuel efficiency and greater engine power. The larger 4" or 5" stainless steel piping ensures better airflow, reducing exhaust gas temperatures. Moreover, the straight-through design helps maximize flow, making it perfect for off-road and competition use.


Features

This race exhaust system offers several advantages, especially for Duramax owners looking to boost performance:

  • Durable stainless steel piping to withstand harsh conditions
  • Available in 4" or 5" diameters to match different performance requirements
  • OE-style hangers provide an easy, secure installation
  • Straight-through design maximizes exhaust flow, helping the engine perform efficiently
  • No bungs, making this system ideal for off-road applications and competitions

Installation Considerations

This product is intended for off-road use only and requires race tuning to operate correctly and achieve optimal performance. The kit includes all required hardware and clamps for installation. Do-it-yourself installation is possible; however, professional installation and tuning are recommended to ensure proper fitment and correct operation. Depending on your vehicle’s configuration, minor modifications may be required.

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: 19592244906

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chris keeton
Belleville, US
★★★★★ 5
Perfect fit
Size: 1-Pack
Fit perfectly, no issues at all. Would buy again in the future.
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Reviewed in the United States on May 22, 2026
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Nah
Omaha, US
★★★★★ 5
Perfect fit
Size: 1-Pack
Perfect fit, easy install
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Reviewed in the United States on May 20, 2026
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Walter Wong
Birmingham, US
★★★★★ 5
Fit
Very good product. Fits in my 318i
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Reviewed in the United States on November 19, 2024
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Loren Clifford
Omaha, US
★★★★★ 5
gorilla grip holder
Fits perfect, grips my drink sooo hard omg
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Reviewed in the United States on May 19, 2026
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Vali C4
Grantham, US
★★★★★ 4
Fits
this cup holder fits ok in my 2002 BMW 325Ci convertible Not quite as tight as the OEM, but I'm happy to finally have a cup holder
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Reviewed in the United States on February 24, 2025

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