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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Monday, Jun 22
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Features
- Wide make & model fit - Works with select Ford, Lincoln, Dodge, Chrysler, Jeep, Chevrolet, GMC, Cadillac, Nissan applications. Enter your vehicle above to verify compatibility. Please contact Bully Dog support for assistance.
- 50 state compliant - Meets emission requirements in all 50 states with dyno-proven tunes that add power, torque and fuel economy
- Heads up display - Monitor over 15 performance parameters at a glance with a dynamic LCD display mounted on a pillar, window, or dash
- Multiple preloaded tunes - Access four preloaded tunes with the touch of a few buttons to maximize performance in any situation
- Code clearing - Diagnose and clear trouble codes to ensure proper engine operation
Brand: BULLY DOG
Tuner Technology: Digital
UPC:
Global Trade Identification Number: 05
Unit Count: 1.0 Count
Tuner Type: Digital
Brand: BULLY DOG
UPC: 681018404105 681018404150
Global Trade Identification Number: 05
Manufacturer: Bully Dog
Model Number: 40410
Mfr Part Number: 40410
Unit Count: 1.0 Count
Warranty Description: Bully Dog Technologies warrants that the product will be free from defects in material and manufacture for one year from date of purchase by the first purchaser of the product who puts it into service, exclusive of Bully Dog distributors, jobbers, and dealers. This warranty extends only to the purchaser and not to any subsequent purchasers or users of the product. This warranty may not be transferred in whole or part. Bully Dog also offers a 30 day money back guarantee on all product.
Item Weight: 1 Pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I could just review the Bully Dog GT in just one word, WOW! It is amazing how much power is hidden by the manufacturer. The moment I loaded it into my 2011 Nissan Titan SV, I could feel the increased gains. I bought this for twor reasons. First, was to add more horsepower and tourque to my Titan in order to tow my travel trailer. Not that I had a problem. However, if there is more power to be had, why not. I have yet to tow with the Bully yet. And with the season over, it will be some months until I can test it out while towing. The second was to assist with fuel economy. The Titans are known as gas guzzlers. Though I like the look of the truck, what I do not like is getting 12mpg around town and 8mpg while towing. I have only had this product a couple of days, and already I see a difference with my fuel economy. I only assume it will get even better in time. If you tow, or need better fuel economy, get this product. I should add 2 items. I choose 2 day shipping from Amazon. I received the Bully on less than 24 hours. Second, as I am not computer savvy, I called Bully Dog's Tech while trying to update the tuner. The tech was more than happy to help. She was able to take over my computer and update it for my. All the while showing me waht to do. Great product, great customer service. Updated 11/25/12: I just wanted to add that I wired the Bully Dog up to a Switched ACC Fuse for a more permanent installment. I used a Mini Fuse Tap, which is availible on Amazon. Make sure you know which fuse tape you need for your fuse panel. There are two different sizes. With the aid of the Mini Fuse Tap, I was able to complete the installation in my 2011 Nissan Titan in under 20 minutes in the parking lot of a Pep Boys! You will also need some zip ties for wire placement. So I guess this update turned into a testimonial for the Mini Fuse Tap. Update 12/12/2012; I had to tow my travel trailer (7800 lbs.) upstate NY the other day which gave me a chance to test out the Bully Dog while towing. I could feel the difference from the stock settings. Towing through the Adirondaks can be challenging at times. This is a route I have traveled while towing hundreds of times. On the very long steep hills, I would need to downshift into a lower gear to make the hill. Not this time. I stayed in one gear and still had enough power to pass a vehicle if need be while using the Bully. I am impressed. I am running the performance/premium tune now. I could feel the difference between the regular tune. More HP and more tourque with this tune. And I am getting better fuel mileage as well. Without towing I am getting over 16mpg on the highway. Big difference from 12-13mpg. And I am now getting 8.5-9.5mpg while towing from 7.5-8mpg. I also have an Airaid Intake, which also helps in gains and mpg. Needless to say, I am very happy with this product. If you tow, if you want to save on gas, if you are a modification junkie, I am all of the above, you need to buy this product. You cannot go wrong. It pays for itself. Provided you do not have a heavey foot! Note: The Bully Dog GT is vehicle specific. Meaning it may have different options for each vehicle. For instance, with my Titan, I cannot re-calibrate for larger tires. Though I can remove the Wide Open Throttle Restriction on my Titan where other vehicles cannot. You should check to make sure the Bully Dog GT can accomplish your reasons for purchasing it. Check the Bully Dog Website for fitment and vehicle characteristics.
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Reviewed in the United States on November 15, 2012 by Seanellyn
Installed this on my PERFECTLY RUNNING WELL MAINTAINED 2001 Silverado 2500hd 6.0L 137 000 miles. Tuned the truck for towing and changed the tire size setting to the new KO2's I put on. My first trip after the new tune was not good. Truck had a random low RPM studder but seemed to have better overall better performance. Next, the tire setting, inputted correctly, was off by 6MPH after tuning. Got back from the trip and truck seemed fine when I shut it off. Next morning It would not start. With the key off/pulled out, Bully dog hooked to ignition fuse power/ switch set to external power, plugged into the OBD2 Port, it had some type of internal failure, flashing screen and the truck mileage odometer was lit and flashing. I unplugged it from the OBD2 port and lights on the cluster turned off, keys still not in the truck at this point. The Bully Dog seemed to have shorted itself because everytime I plugged it back in, the cluster lit up, odometer lit, Note; it was powered correctly to fuse panel. The truck would not start. HUNDREDS of dollars later and reflashed to stock I finally got the truck running. It totally screwed up the electronic timing, air and fuel settings. I had to test signaling from every sensor, MAF, MAP, crank, cam, temp, air fuel valve, TPS, and fuel pressure regulator, injectors and fuel pump. It had screwed up the tune on the ECM so bad the signaling from multiple sensor were not being precessed properIy. Because of this it even changed the transmission shift pattern to a harsh neck snapping shift. I would never plug one of these units into my OBD2 port. Legal action should be taken against this company. DO NOT BUY.
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Reviewed in the United States on June 13, 2022 by Honest reviewer
2007 Avalanche LTZ - Trying to get the updates loaded via USB is a pain, once loaded, install is fairly easy (don't bother reading the directions, they are little help, just follow the on screen directions). Unit is small (which is nice), windshield mount is good but bounces around (I will eventually buy the pillar mount), make sure when you open the package to look for a tiny envelope that has the microSD card for the unit in it! Unit also DOES REQUIRE A 12V switched/keyed power! I ended up using a pin in an unused plug, in the distribution box just left of the brake peddle; so I didn't have to run any wires thru the firewall. NOTE: Most GM trucks 2002 and newer do not have switched/keyed fuses, so finding 12v power that switched is difficult but I found info searching online that lead to the plug I used for my truck. As for performance... It's been installed for 2 weeks, set to "Performance" on engine and trans, very noticeable difference in power, throttle response and shift points. I was hoping I would be one of the 6-8MPG people, but it looks like 2-3MPG gains are more likely. Installed, drove for a week and maintained my 15-16MPG even though I was playing more and doing the preference tests (1/4mile runs). Left for vacation, long 1100 mile highway trip thru the mountains, got 18.4MPG there, 14.6MPG driving thru the Smoky Mountain National Park and touring gatlinburg and pigeon forge (AC running full blast), 17.7MPG on the way home (including several delays for construction where we moved half a mile over 40minutes, AC on high). Overall if I can pickup 2MPG, 60miles per tank, that should pay for the unit in 6months and the drive is so much more fun now! Using the unit for extra gauges is nice, I currently watch the MPH, Intake Temp, Trans Temp and Coolant Temps. Overall nice package for a stock vehicle... if you have a lot of upgraded parts like trans, intake, exhaust, gearing that is not factory a custom tune would be much better and tailored for the actual setup. This unit allows for general factory upgraded settings for a stock vehicle.
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Reviewed in the United States on August 13, 2012 by JJL
Would recommend doing business with them they very quick especially for their delivery
Reviewed in the United States on May 27, 2026 by Shonda Marie selman
Back in the day bullydog used to be one of the go-to’s for off the shelf tuning. I’ve come to find out that they were purchased by a company ( derive), and since the customer service has went a bit down hill. The issue I had was with some of the 01-07 gm trucks, the tuner can have trouble with communicating with the ecu due to electrical noise. For about a week or so I contacted bullydog, with no reply. Also there is no direct number for you to call, and they don’t respond to emails. Other than having to figure out the issues on my own, the device and tune itself do the job. Definitely woke the truck up and the drivability is a lot better.
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Reviewed in the United States on April 20, 2024 Reviewed in the United States on April 20, 2024 by Fischer Sanderson
Great product. Newest software update changes the product to 40415. This system is NOT for a NOVICE. I got it installed the first time easily enough. Takes a little knowledge, which is frankly hard to find anyone giving tips on the product. Definitely read the manual and ALL vehicle specific substitute material. (If is says to pull a fuse, just do it...) NEVER try to program your vehicle away from a computer, your sd-card adapter, nor your usb connection cable and a good phone signal unless you enjoy the possibility of being stranded. I had some trouble on the 2nd flash. The system didn't want to display the warning before flash and froze up. (I'm told that was a software glitch that has been long patched. UPDATE YOUR UNIT FIRST DON'T GET EXCITED AND INSTALL IT OUT OF THE BOX!!) Their Tech support is top notch, they will take care of you IF you have the time. Warning to chevy users. Don't be an idiot and rip out the CAN bus pins on the adapter, it's not the programmer resetting your clock to 1:00. It's chevy's low battery protection system. If your low battery light comes on while programming you have a bad/dying battery. Do yourself a favor and replace it or use jumper cables/battery charger while programming. They are not kidding about making sure you have a good power source. You can toast your ECU if you think your smarter then the Engineers that are telling you to hook up a charger. Hope these warning help someone else have a good experience. On a positive note the power realized is unreal for a gas motor. in my 8.1L i was pulling away from diesel trucks. You should see their faces when they get smoked by an Avalanche. epic.
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Reviewed in the United States on June 2, 2013 by Secret Shopper
1st off, I'm working on my F150, and as always, it will be a work in progress. It's installed, and ran the fuse tap ignition wire to turn on and off with the ignition. Contemplating 3d printing a bezel to mount it in, but I'll cross that bridge when it's time. I've installed the regular tune, which has definitely given a small bump in power, but not huge. The performance tune for the transmission has made noticably better shifting, which is nice for the longevity of the transmission. It runs smoother at low load, and the improvement under the curve is where this has been worth it. From about 1200-3000 rpm, it feels a lot different. I would recommend it for so many different reasons, but the power bump, fuel savings, transmission shifting, the real time metering, the ability to store custom tunes for later.
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Reviewed in the United States on June 3, 2025 Reviewed in the United States on June 3, 2025 by Steve
I hope no one else wastes their money on this product. besides freezing all the time it did nothing for my truck and in fact turned into a hassle. It would hardly let my doors lock and unlock with my key fob. and I know that because as soon as I unplugged it it went back to working just fine. also it was nearly impossible to hook up to a fuse for power since the titans use the stupidest fuses known to mankind. which that isn't a bully dog problem but, since I hated their product so much I'm only going to get mad at them for it. I mainly wanted it for fuel economy (which the driving coach didn't even work) and the fuel economy thing would read 27 mpg on the freeway which also pissed me off knowing how off and impossible it was. I mean the thing was junk and just way off. Don't get me wrong though I used the whole thing for performance and all it all sucked and didn't change a thing. lastly when I returned to stock and uninstalled the gt I feel like it has still left its crap on my truck and I'm forever now going to wonder. I am pretty mad about my purchase and I hope this helps someone else who is thinking about buying for a titan. don't do it!! it may work for other vehicles but if you have a titan and don't care for my post look at some other things. like frequently asked questions on the 3 out of 10 our codes that titans throw. Gal I'm still so mad and this rant doesn't make me feel as good as I was hoping it would. Have a nice day.
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Reviewed in the United States on March 8, 2014 by Tyler