Best Tuners For 6.6 Duramax Today

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Quick Answer: Best Tuners for 6.6 Duramax

  1. Bully Dog – 40420 – GT
  2. Hypertech 32501 Max Energy Power
  3. Superchips 2845 Flashpaq F5 Tuner
  4. DiabloSport 8245 inTune i3
  5. Edge Products 85400 CTS2
  6. Edge Products 85100 Evolution
  7. PPE Xcelerator GM 2001-2010
  8. PPE 111010000 Xcelerator Tuner

The Duramax engine is a part of the family of General Motors engines that are manufactured for trucks. It is a V8 model that is used in vans, pickup trucks, and medium-duty trucks.

The 6.6L variant has been in production since 2001, and ever since, there have been steady improvements to the engine in the form of small tweaks and enhancements by General Motors.

The following section of the article includes reviews of some of the best performance tuners for the 6.6L Duramax engine.

We also answer some of the frequently asked questions about tuning and the 6.6L Duramax engine.

Best Tuners for 6.6 Duramax Compared

Here’s a comparison between Best Tuners for 6.6 Duramax:

Product ImageProduct NameFeaturesPrice
No products found.Bully Dog - 40420 - GT
  • Wifi Enabled: No
  • Weight (Ounces): 4.8
  • Pre-Loaded Tunes: Yes
  • USP: Extremely lightweight
No products found.Hypertech 32501 Max Energy Power
  • Wifi Enabled: No
  • Weight (Ounces): 15.2
  • Pre-Loaded Tunes: No
  • USP: Speedometer calibrations possible
Superchips 2845 Flashpaq F5 Tuner
  • Wifi Enabled: No
  • Weight (Ounces): 11.2
  • Pre-Loaded Tunes: Yes
  • USP: High resolution display
No products found.DiabloSport 8245 inTune i3
  • Wifi Enabled: No
  • Weight (Ounces): 6.7
  • Pre-Loaded Tunes: Yes
  • USP: Reputed brand name
No products found.Edge Products 85400 CTS2
  • Wifi Enabled: No
  • Weight (Ounces): 27.2
  • Pre-Loaded Tunes: No
  • USP: Updatable over the Internet
Edge Products 85100 Evolution CS ProgrammerEdge Products 85100 Evolution
  • Wifi Enabled: No
  • Weight (Ounces): 24.8
  • Pre-Loaded Tunes: Yes
  • USP: Allows in-cab monitoring
PPE Xcelerator GM 2001-2010
  • Wifi Enabled: No
  • Weight (Ounces): 33.6
  • Pre-Loaded Tunes: Yes
  • USP: Mileage improvement noticed

Reviews of the Best Tuners for 6.6 Duramax

Bully Dog - 40420 - GT

best overall rating No products found.

The notable feature of all Bully Dog tuning products is the fact that all their pre-loaded tuning files are capable of delivering dyno-proven performance and are street-tested.

These tuning files are known to improve the vehicle engine performance and increase the torque.

Check out this performance tuner in action in a quick video at:

 

Some of the critical features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Kit includes a complete mount for the dash
  • Enable a wide range of performance parameters simultaneously
  • Allows custom tuning and storage of up to 10 files on the device
  • Wide range of compatibility, highly versatile tuning model
  • Allows the user to enjoy a higher fuel economy
  • Easy diagnosing and clearing of the vehicle engine codes

Pros

  • Extremely lightweight at just 4.8 ounces
  • Speedometer calibrations and diagnostics offered
  • Highly recommended by the users
  • Users found it easy to install and use
  • Great customer service

Cons

  • The tuner does not support a deleted truck

Hypertech 32501 Max Energy Power

best overall rating No products found.

Hypertech has developed quite a few models of engine tuners over the years, and this particular model was designed to meet the tuning requirements of the 6.6 Duramax.

It works toward optimizing the engine performance and delivering maximum power and torque.

Check out the features of this Hypertech performance tuner in a quick video.

Some of the critical features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Speedometer calibrations possible
  • Speedometer can also be adjusted for non-stock tires
  • Adjustments available for shift firmness and transmission shift points
  • Easy reading and clearing of diagnostic trouble codes
  • Adjustable REV limiter functions
  • Superior tuning mode that does not require de-fueling
  • Different stages of power can be set while tuning

Pros

  • Lightweight at just 15.2 ounces
  • Allows configuring the top speed limiter
  • Fuel management modes for V4 and V8
  • Considerable fuel economy offered
  • Allows returning the vehicle to the factory settings
  • Easily updatable over the Internet

Cons

  • Some customers felt that the product needs to be updated very frequently

Superchips 2845 Flashpaq F5 Tuner

best overall rating

There are a plethora of tuning products to choose from when it comes to Superchips. This particular model works best for the 6.6 Duramax.

Like all tuning products offered by Superchips, this tuner does not tamper the vehicle’s emission system, thus making it legal for use in all 50 states, including California.

Check out this performance tuner in action in a quick video at:

 

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • High resolution, fully colored, 2.8-inch display
  • The graphic interface is redesigned and highly customizable
  • Performance tuning modes of Daily Driving, Towing, Extreme and Economy available
  • Adjustment and tuning options available for shift firmness, shift tuning, and TQ management
  • Easy clearing and reading of trouble codes
  • Backed by a two-year warranty offered by the manufacturer
  • Updatable over the Internet via the USB
  • Legal in all 50 states including California
  • Increased memory
  • Processing speed is highly improved

Pros

  • Allows speedometer adjustments for changes in gear ratio and tire size
  • Compatible with other performance upgrades to the vehicle
  • Lightweight at just 11.2 ounces
  • Marked improvement noticed in the vehicle’s mileage
  • The good quality technical support offered
  • Users found it easy to use and install

Cons

  • Some customers noticed interference with the CPU while tuning

DiabloSport 8245 inTune i3

best overall rating No products found.

The Platinum model of the Diablosport performance tuner offers the best of both worlds.

Not only does it come pre-loaded with tunes for the vehicle that are dyno-proven and street-tested, but it also provides the much in demand custom tuning capability.

The optimization of the engine with this tuner allows the user to extract as much horsepower as they can from the vehicle’s engine.

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Can be used for tuning multiple vehicles
  • Easy tune mode offered for greater ease of installation
  • Rapid vehicle read and write times
  • Offers data logging capabilities with the help of the OBD-II
  • Reading and clearing diagnostic codes is very easy
  • Compatible with Mac, Linux, and Windows

Pros

  • Multi-vehicle tuning possible by purchasing a multi-vehicle license
  • Lightweight at just 6.7 ounces
  • Users found it easy to install and use
  • Reputed brand name
  • Updates are completely free

Cons

  • Not compliant in all 50 states of the USA

Edge Products 85400 CTS2

best overall rating No products found.

The first thing about the CTS2 that catches your eye is the sophisticated display that allows monitoring of multiple vehicle performance parameters in one go. The screen is 5 inches in size and offers a high resolution and full color.

Check out the performance of CTS2 in a quick video at:

 

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Multiple gauge layouts to choose from
  • Backgrounds can be customized according to the user’s preference
  • The menu is easy to navigate and very intuitive
  • Adjustments possible to speed limiter and rev limiter
  • Speedometer corrections are possible
  • Updatable over the Internet
  • Tuning options available for shift firmness and shift points
  • Torque management options available

Pros

  • Slim, sleek and lightweight design
  • Allows easy switching between the metric and US units of measure
  • Compatible with both gas and diesel models
  • Multiple power levels available that can be chosen from
  • Quick installation within minutes
  • Users found it easy to install and had excellent technical support

Cons

  • Permission still pending for use in all 50 states of the USA

Edge Products 85100 Evolution

best overall rating Edge Products 85100 Evolution CS Programmer

This Evolution CS programmer is a very comprehensive model that offers to monitor over various vehicle engine parameters like fuel rail pressure, fuel temperature, engine load, engine RPM, oil pressure, oil life remaining, trans temp, MPG average, pilot injection rate, coolant temp, barometric pressure, accel pedal position, etc. to name a few.

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Offers configuration control over speed limiter
  • Tire size compatibility for any tire between 26 to 38 inches
  • Allows in-cab monitoring
  • Highly customizable backgrounds with a full-color display
  • Auto-dimming feature of the screen
  • Compatible with the EAS (Expandable Accessory System)
  • Allows setting custom alerts

Pros

  • Updatable over the Internet
  • Multiple power levels to choose from
  • Offers the scanning capability that helps easy reading and clearing of trouble codes
  • Easy installation by plugging into the OBD-II port
  • Fuel economy is improved

Cons

  • Customer support could be better

PPE Xcelerator GM 2001-2010

best overall rating

The PPE (Pacific Performance Engineering) was found in 1985 and has worked over the years for achieving excellence in diesel performance.

They have focused on creating high quality and innovative products over the years that are also environmentally friendly.

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Gear ratio adjustable anywhere between 2.73 and 5.13
  • Easy reading and clearing of the diagnostic trouble codes
  • Read time monitoring of vehicle performance data possible
  • Easy feature for transmission reset
  • Updates are quickly downloading via the USB plug
  • Choose any of the five power levels available

Pros

  • Adjustment control offered for speed limiter
  • Manual DPF regeneration
  • Compatible with the vehicle models between 2001 and 2010 (high versatility)
  • Customers found the tuner very easy to use
  • Mileage improvement noticed

Cons

  • Legal in California but only for racing vehicles

PPE 111010000 Xcelerator Tuner

best overall rating

This performance tuner by PPE is compatible with the 6.6L GM Duramax Diesel LB7, LLY, LBZ and LMM models between 2001 and 2010.

PPE has created particular tuner models that cater to different types of engines, and this particular model works best for the 6.6 Duramax.

Some of the key features of this performance tuner for 6.6 Duramax are listed below.

Key USPs

  • Three different levels of power to choose from (for different horsepower and torque requirements)
  • Easy reading and clearing of the trouble codes of the vehicles’ engine
  • Allows adjustments to the speed limiter
  • Manual DPF regeneration
  • Has a quick learn feature
  • Updates can be downloaded via the USB side plug
  • Fast and easy engine diagnostics offered (real-time)

Pros

  • Gear ratio adjustable in the range of 2.73 to 5.13
  • Customers highly satisfied with the product performance
  • Easily upgradable
  • Installation is fairly straightforward
  • Works as expected

Cons

  • Customer service could be better

FAQs

What are the horsepower and torque output of the 6.6 Duramax engine?

The 6.6L Duramax engine is more powerful than the previous variants produced by General Motors. It gives an output of 397 HP, and the torque output is 765 lb-ft.

What are some of the best features of the 6.6 Duramax engine?

Some of the notable features of the 6.6 Duramax engine are stronger connecting rods, updated ECM, better block casting, and high-pressure rail fuel systems.

Will my vehicle emit fumes after tuning?

All the performance tuners in the market are designed in a manner so as not to tamper the emissions system of the vehicle. It is also illegal to do the same as per the emissions norms that are established in all the states.

What will be the maximum expected increase in speed after automotive tuning?

The exact increase will depend on the tuner as well as the particular engine model. However, typically a growth of 5 to 10 kmph can be expected. The increase in power is achieved by boosting the torque in the lower to medium speed range.

Will the car heat up more after using a tuner?

There might be a slight increase in temperature (no more than a few degrees) after the use of a tuner. This could be because of the higher strain on the engine due to the higher performance delivered.

Do the brakes need to be changed after engine tuning?

It is not necessary to change the brakes after automotive tuning. The specific pre-tuning and post-tuning instructions are usually stated clearly in the tuner manual. These should be followed precisely so as to get the best out of the engine and to avoid any setup issues.

Summary

Automotive tuning is one of the best options for speed enthusiasts who want to improve the performance of the vehicle without physically altering the car or getting into some expensive automotive re-engineering.

The purpose of tuners is to override some of the factory set impositions on the vehicle engine that restrict the car from realizing its full power potential.

The use of a tuner allows the user to get a higher degree of control over several minor engine parameters.

Selecting an appropriate tuner is one of the first steps in realizing the best potential of your vehicle’s power.

About Ronald Harris

I am Ronald, the car enthusiast. I have been in love with cars ever since I was a child and now I own three of my own. Folks will often find me tinkering away in my garage on one of them - or maybe all three! It is always good to keep your skills honed so you are prepared for any eventuality. Often times I'll take off on adventures that might take me through the mountains or across the country. The best part about driving is meeting new people along the way and getting to know different cultures and ways of life from state to state, country to country.

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