Shopping Cart

Your cart is empty.

Your cart is empty.

Hypertech 730129T Inline Speedometer Calibrator for GM Trucks & SUVs

Free shipping on orders over $29.99

$228.59

$ 92 .99 $92.99

In Stock
  • In-line module to correct the speedometer for non-stock tire sizes and/or gear ratios
  • Installs easily to the factory wring harness - No Splicing Required
  • Perfect for vehicles with computers that don’t allow for tire size and/or gear ratio correction
  • No limitations for increasing tire height or gear ratio
  • Provides accurate speedometer readings as required by law
  • Fit type: Vehicle Specific


Hypertech 730129T Inline Speedometer Calibrator for GM Trucks & SUVs, Black


Customer
Reviewed in the United States on March 25, 2025
Be aware that 2019 and later really means 2019 to 2022. This will NOT work on a 2023 or newer Silverado. Returned the one I purchased without issue.
Patrick Adams
Reviewed in the United States on March 11, 2025
I have a 21 Chevy Silverado 1500 3.0 Duramax Z71 and sized up in tires and it changed my speedo, dealerships can no longer reset speedos, so I purchased this item. The product is very easy to use and install. took a total of 30 minutes to complete the whole setup! Went on a test drive and speedo was spot on versus gps speed. Also notice transmission was back to correct shift points then making my MPG return to it original average. Great item easy install worry free
Felicia Hollis
Reviewed in the United States on August 3, 2024
Awesome Product! Highly recommended! Very happy with this, and easy to install! Speedometer is reading exactly what the gps reads, 100% satisfied with this product!
Customer
Reviewed in Canada on March 12, 2024
works well including cruise. needed to adjust by tire measurement for best accuracy
Jesse
Reviewed in Canada on March 10, 2024
Calibrator came in a plastic bag, not even the correct one and was missing pieces and also damaged. Not impressed.
Customer
Reviewed in the United States on November 29, 2024
After a problematic setup experience, the module does work but………..I found the program setup template to be opposite as labeled.The ‘Old Tire’ data field actually had to be populated with the new tire size (aftermarket - larger tire). The ‘New Tire’ data field had to be populated with the original OEM tire size. I contacted tech support via email multiple times and found them to be only partially helpful. Ultimately, they told me I’m the only one with this problem and they didn’t know why. They also seemed less than interested in understanding / learning why the module I purchased was ‘different’ than everyone else.Ultimately the module does work.Technical support……not so much.
Timothy C Schuman
Reviewed in the United States on July 2, 2023
I ordered this product because we sell some of there stuff so I trusted them. they sent the part with the wrong wire harness. I have reached out several times and all I got from them HYPER TECH we'll get back to you and NEVER HAVE.
Ronnie
Reviewed in Canada on June 16, 2023
Does not fit 2022 and newer GMC Sierra
thomas tittle
Reviewed in the United States on March 6, 2023
Simple to program and install. Done exactly advertised corrected my speedometer when I changed Tire size. Must have if you have a 2019 or newer GM vehicle. The factory locked out the ability to even have the dealer change your tire size.
Cody Burke
Reviewed in Canada on March 26, 2023
The programming and install are very easy and most importantly, it works. The one for 2021 GM works with my 2022 Sierra limited (non refresh, old interior).
Justin T.
Reviewed in the United States on April 10, 2023
The description was lacking a bit so I wasn't sure if it would work on my 2023 Silverado. Found out the hard way in won't
Joe
Reviewed in the United States on November 18, 2022
I added tires to my truck that are 3.5" bigger diameter than stock. I bought this calibration device to fix my speedometer. Took 2 minutes to calibrate online. Took 2 minutes to install. Works perfect. I used GPS on my phone to verify my truck speed, and it matches the speedometer now.
Recommended Products

$10.47

$ 4 .99 $4.99

4.8
Select Option

$70.00

$ 30 .99 $30.99

4.5
Select Option

$33.00

$ 16 .99 $16.99

4.5
Select Option