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Superchips Flashcal Calibrator for GM Truck

Superchips Flashcal Calibrator for GM Truck

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Superchips Flashcal Calibrator for GM Truck Flashcal SU2545
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Lowest Prices for the best performance chip from Superchips. Superchips Flashcal Calibrator for GM Truck part number SU2545 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (8)
  • Q & A (3)
  • Photos
  • Why etrailer?

Superchips Performance Chip

  • Superchips
  • Flashcal
  • Calibrator
  • Color Screen

The Superchips Flashcal offers monitoring, caibration, and control features without any modifications to your vehicle. Calibrate for larger aftermarket tires, adjust for gear ratio changes, and enjoy best-in-class monitoring and control features, all without popping the hood.


  • Calibrates your vehicle to turn it into a superior off-road machine
  • Corrects speedometer for tire upgrades between 26" to 38"
  • Recalibrates factory speedometer to correct for various tire sizes and gear ratios
  • Speed and rev limiter options
  • Tire-pressure monitoring system (TPMS) options
  • Reads and clears diagnostic trouble codes
  • Digital battery voltage display
  • Real time data logging and monitoring

Note: Not all features or monitored parameters are available for all applications. Available features and parameters will pop up automatically on the display once the Flashcal is plugged into your vehicle.

Superchips Flashcal Calibrator for Trucks

If you are a GM truck owner who is looking for a device to help calibrate for your large aftermarket tires, read/clear trouble codes, adjust your speed limiter and more, then look no further. The Flashcal for Truck is a product designed to give features and calibration tools to truck owners at a great price.

The days of clunky, outdated calibration tools are over. Flashcal has trucks covered and the market cornered with quality and pricing that can't be matched. Covers 1999 to 2016 GMC/Chevy gas trucks and 2001 to 2016 GMC/Chevy diesel trucks.

2545 Super Chips Flash Cal Calibrator for GM Truck

Item # SU2545

This Product Fits The Following Vehicles

Customer Reviews

Superchips Flashcal Calibrator for GM Truck - SU2545

Average Customer Rating:  5.0 out of 5 stars   (8 Customer Reviews)

- SU2545

Exactly what I ordered, for to me fast an I love everything about it

- SU3571

Review from a similar Flashcal in Performance Chip

After looking at many options for a way to change the speedometer of my 2015 JKU Rubicon to accommodate the larger tires that were on it, I finally settled on the Superchips Flashcal F5 3571. I watched for months, hoping to catch a deal on it since I wasn't very excited about spending my Jeep budget just to fix the speedometer. I finally found a deal that I could live with at etrailer.com. Their price was well below every other option. I was informed via email that my order would ship in the next 7 days. I had already waited months, so not a big deal for the price. 3 days later Brittany called just to let me know that they hadn't received the item yet, so it hadn't shipped yet. I really appreciated the personal touch, even though I wasn't expecting the order to be shipped for another 4 days. The order arrived 10 days after ordering, well packaged and just as advertised. I read the directions, connected it to my computer and installed the latest updates. I then connected it to my Jeep. Like the instructions said, I measured my tires (my 35s actually measured 33.5") and entered the information into the Flashcal. I also changed the DRL settings so that my headlights come on. My tires are aired down, so I was wanting to shut off the TPMS, but much to my surprise there was an option to change the TPMS level. I had read all kinds of reviews and watched videos, but that option never showed up. I was thrilled to say the least! At this point, I grabbed the GPS and went for a test drive to check the speedometer. It is now spot on and a hidden benefit is that when I changed the tire size, it automatically changed the shift points. My Jeep drives so much better now! I really wish that I hadn't waited so long to make this purchase!! Full price would have been worth all of the benefits that it provided.

- SU3571

Review from a similar Flashcal in Performance Chip

I love this thing, easy to install and use, went from 12mpg up to 22. I also have a induction system and throttle body spacer, best money I've spent...

- SU3571

Review from a similar Flashcal in Performance Chip

First off, GREAT PRICE from etrailer. The product itself is a must have if you have larger than stock tires on your Jeep Wrangler. The programming is smooth and seamless. 5 star company, 5 star product.

- SU3571

Review from a similar Flashcal in Performance Chip

Worked perfectly for my needs. Installed larger tires on my JK, needed this to set my tire size to correct my speedometer. Worked flawlessly. Thanks!

- SU3571

Review from a similar Flashcal in Performance Chip

Easiest thing I have done. Plug the device in and it will walk you through your steps. Worked great.

- SU3571

Review from a similar Flashcal in Performance Chip

Product was on back order and took couple more days to arrive but great customer service from George and Brittany.

- SU3545

Review from a similar Flashcal in Performance Chip

Speedometer is now correct. Easy to use. Thanks.


Ask the Experts about this Superchips Performance Chip

  • Recommended Transmission Cooler for 2008 GMC Sierra 1500 Towing Travel Trailer
    A tuner will be beneficial to optimize your 2008 GMC Sierra's towing performance in terms of power and torque, but the best option for your 2008 GMC Sierra is going to be a transmission cooler. For your truck I recommend the Derale Series 8000 Plate-Fin Transmission Cooler # D13504. The rule with transmission coolers is the bigger they are the better they are going to cool, and this is an 11" Wide x 12" tall x 7/8" deep plate and fin cooler, which is more efficient than the tube and fin...
    view full answer...
  • SuperChips Programmers that Fit 2017-2018 GMC Sierra Denali 3500HD
    We have SuperChip Flashpaq programmers that fit your 2017 and 2018 GMC Sierra 2500 with the part # SU5845 for if you have a diesel engine or the # SU2847 for if you have a gasoline engine. These can make the adjustments you are wanting but you should note that you can only install a programmer on one vehicle at a time. So you'd need two programmers if you need the adjustments to be on both vehicles at the same time.
    view full answer...
  • Solution for Adjusting Factory Speed Limiter on 2018 GMC Sierra 1500 Denali
    To adjust the factory speed limiter on your 2018 GMC Sierra 1500 Denali you can install a tuner like the Superchips Flashcal # SU2545. This tuner is confirmed to fit your truck and will provide you with speed and rev limiter adjustments, calibration options for larger aftermarket tires, and the ability to read and clear diagnostic trouble codes. While this will allow you to adjust the speed limiter I can't really commend going over the factory setting. This limit is there to ensure...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Daron K
Edited by:
Daron K
Employee Jeanne D
Written by:
Jeanne D
Employee Alex H
Updated by:
Alex H

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