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2011-2015 Chevy / GMC Duramax Diesel LML Pickup Trucks 6.6L  5“ Downpipe-Back Exhaust Pipe

The DynoVox 5" Downpipe-Back Exhaust Pipe for 2011-2015 Chevy/GMC Duramax Diesel LML 6.6L Pickup Trucks is designed to enhance exhaust flow, improve performance, and boost horsepower. By eliminating restrictive factory components, this exhaust system reduces backpressure, enhances turbo efficiency, and provides a deep, aggressive exhaust tone. Built with durable, high-quality materials, it ensures long-lasting performance and reliability for off-road applications.

Vehicle Compatibility:

The 2015 model year is special. 2011-2015 downpipes use a v-band clamp to connect to the turbo straight-through pipe, while 2015.5-2016 models use a 3-bolt flange. Be sure to check the style of clamps your truck is equipped with.

Product Features and Benefits

The DynoVox 5-inch Exhaust is made of high quality T-409 stainless steel with a thickness of 2 mm. It is rigorously tested for corrosion resistance and durability to ensure long term stable operation. The aluminized silver finish is not only aesthetically pleasing, but also provides excellent performance.
With this exhaust installed, you can easily remove the diesel particulate filter (DPF) and exhaust gas recirculation (EGR) system, effectively increasing horsepower by 30 to 100 horsepower and significantly improving fuel economy. It restores power to your pickup while reducing fuel costs.

The Problem of DPF Clogging

Have you been bothered by the Diesel Particulate Filter (DPF) clogging during long-term use of your vehicle? DPF clogging not only significantly reduces the vehicle's power but may also cause the average fuel consumption to soar to 13 - 14 mpg. Frequently entering the "limp mode" greatly degrades the driving experience and may even lead to a breakdown on the roadside, bringing you extreme inconvenience during your travels.

Installation:

Installation typically takes about 1 hour using basic hand tools and can be done on the floor of your driveway or garage. Using a car lift may be faster. For vehicles with shorter wheelbase bed/cab configurations, some cutting may be required. This includes clamps, hangers, and hardware, but you may need to reuse some of the stock parts.

Debugger is required:

Deleting the DPF, CAT, SCR, and/or DOC requires eliminating emissions-related sensors. To avoid triggering a Check Engine Light or Diagnostic Trouble Code, a tuner with DPF Delete capability must be used.

Brand DynoVox Tubing Size 5-Inch
Thickness 2mm Material T-409 stainless steel
Color Silver Finish Aluminized
Package Include Exhaust Pipe x 5 Clamp x 4 Warranty 5 Years
Installation Location Near the engine
Item Condition New

Warranty and Shipping Services

We provide a 5-year warranty and a 30-day free return and exchange service, so you have no worries. At the same time, you can enjoy fast and free shipping within the United States.

DISCLAIMER

1. By installing this product onto your vehicle, you assume all risk and liability associated with its use.2. It is your responsibility to make sure your Vehicle complies with all federal, state, and local emissions laws. Federal and many state and local laws prohibit the removal, modification, or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway Violation may result in a fine of up to $ 32,500 per vehicle ( or possibly higher depending on changes in the law ). All civil penalties and fines for removing your vehicle emissions equipment are the sole responsibility of the end user.3. Due to its high-performance nature, this product may void the vehicle manufacturer's warranty.4. DynoVox is not responsible for the misuse of its products By installing this product, you release DynoVox of any liability associated with its use.5. Depending on where you live, restrictions may apply. Check all applicable laws before installing or using.6. The purchaser and end-user release, indemnities, discharges, and holds harmless DynoVox from any claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product installation instructions. DynoVox will not be liable for any direct, indirect, consequential, exemplary, punitive, statutory, or incidental damages or fines caused by the use.

Frequently asked questions
What are the benefits of installing a 5" Downpipe-Back Exhaust Pipe on my 2011-2015 Chevy/GMC Duramax Diesel LML 6.6L?
Installing a 5" downpipe-back exhaust improves exhaust flow, reduces backpressure, enhances turbo efficiency, and provides better horsepower and torque. It also delivers a deeper, more aggressive exhaust sound for enhanced driving experience.
Does this exhaust pipe require tuning after installation?
Yes, installing a DPF delete exhaust system on your Duramax Diesel 6.6L LML requires ECU tuning to avoid engine error codes and ensure optimal performance.
How loud will my truck be after installing this exhaust system?
This 5" downpipe-back system provides a deep, aggressive exhaust tone. The noise level depends on other exhaust components, such as whether you keep the muffler or opt for a straight-pipe setup.
How long does the DPF Removal software take to complete?
On average you are looking at approximately 1-2 hours, however this can vary between vehicles. For complete physical hardware and software DPF Removal you are looking at approximately 5 hours.
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