NEW DIABLOSPORT PULSAR LT ТUNER,COMPATIBLE WITH 2019-2022 СHEVROLET SILVERADO 1500,GМС SIERRA 1500

Using this for weeks now in a 2020 Sierra 1500 with the 6.2 and 10 speed.Installs easily, although the written instructions need improvement. I would recommend watching the installation video. They do provide a QR code that'll take you to their videos.The features are all programmable through the buttons on the steering wheel.The throttle sensitivity is easily adjustable even while driving. Very cool and useful.When disabling the auto stop feature, the light on the auto stop button turns off as well, unlike with the units that plug into the OBD port. With those, the light is always on (even though the feature is disabled). Just nicer that way.I have not had to modify ratios and all, but it is a nice feature if/when needed.One thing I really would like to see added, preferably with just a firmware update, would be the ability to have the truck go into "sport" mode every time the truck is started.Other than that, this product has been great. Between disabling AFM and also increasing throttle response, this will make for an entirely different driving experience. By a lot. You'll feel the difference in the seat of your pants kinda thing. So definitely worth it just for that. Well worth the price increase over the other types IMO.

Works like a champ. I love this device!!! makes my truck run faster. Very happy with it and was easy to install, Thank you.

This thing makes your truck turn into a beast. No more annoying auto start/stop, no more DFM, and I put the speed limiter to 130 just because I can (goes up to 140). These were my primary reasons for ordering this thing. The throttle response feature is just crazy. I started on the lowest and worked up to 5 just to see the difference in performance. It now has crazy acceleration and no more lagginess like before. I left it at 3 as that’s plenty for everyday driving, but you can go to 5 if you want a rocket ship. That feature is adjustable on the fly.It is a bit spendy, but damn it’s worth every penny. This is how the 6.2 should have been from the factory! Installation was a breeze. I don’t like where they have you mount the unit but there really isn’t another place to put it that I could see. Again this thing is the awesome and I would highly recommend to anyone.

This was a phenomenal waste of money, constantly putting the truck into limp mode and throwing codes. No it's not the truck, as soon as the tuner was unhooked the codes were gone and truck working fine.

I bought this for a couple of reasons, first I wanted to disable the DFM, second I wanted to turn off the Auto stop/start feature, and third I did not like the speed limiter set at 98MPH. Sometimes you need to be able to go over 98MPH when passing a line of semi trucks or slow traffic.As it does not increase HP, I wasn't expecting much of a performance improvement. I was wrong! Changing the throttle response unleashed the hidden power and complemented my upgrades. With a RotoFab cold air intanke, and muffler delete, the Pulsar made it seem like a totally different truck. Performance, acceleration, and sound is crazy. My son in law owns the exact same 6.2 trail boss that I own, I let him drive mine and he could not believe it was the same truck as his. Punching the gas at 60-70 MPH will spin the rear wheels. Never had that happen before.I made a Dodge boy cry when he thought his noisey, smoke emitting, pig of a diesel couldn't come close to passing me. Well worth the investment!!

I bought this mainly to turn off the Dynamic Fuel Management on my 5.3 Trail Boss (IYKYK), but also because of all the other features available to help dial in my truck to my preferences. Besides turning off the DFM, you can also turn off the Auto Start/Stop for the engine, adjust throttle sensitivity, adjust the speed limiter, correct for different size tires. This is a plug in module that is easy to install. I think the average DIYer could install it and set the programming in about an hour. It includes a T-Harness that gets plugged in between the engine module and the factory wiring harness. The harness is of great quality, and even uses the same type of locking cams to secure the plugs.I can definitely feel the better throttle response, and it's nice not having to manually turn off the Auto Start/Stop every time I start the engine. The company falls under the Holley (Carburetor) company, which is reassuring to those motor heads out there.So why 4/5 stars?1. It's a little pricey. Don't get me wrong, I appreciate the quality and features, but it seems to be at the higher price range for these things. It can be subject to software updates from the company, but to do this, you would need to purchase a special cable to connect it to your computer, which is more money.2. Setting your desired features is a little quirky. In the programming mode, it utilizes the speedometer dial to indicate what setting the feature is set at. With touch screens in practically every vehicle, it would seem to be a more natural user interface for setup. The good thing is the company has videos on how to set it up, and others on YouTube have similar videos. Overall, not too bad. I would buy again.

Great product no more auto stop/dfm, mph is @ 140, throttle response is @15% increase. Very happy with the Pulsar LT. Using it with a 2020 GMC AT4 6.2L 10spd.

Install was simple and works as said. Only problem is the blinds pot light on both driver and passenger mirror keeps turning on. Calling companie tomorrow.