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Hypertech Speedometer Calibrator Part #730103 Customer Reviews

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23 Customer Reviews


Reviewed by Donald M (BATON ROUGE, LA) Reviewed for a 2010 Toyota Tundra — Feb 25, 2017 7:26 AM

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Installed larger tires on my 2010 Toyota Tundra after doing so traction control was off badly when acelerating at speed it would imeditly kick in. After installing all is correct now and I'm getting 1.5 mpg better on gas mileage. 5 stars

Love It!!!

Reviewed by David S (VIRGINIA BEACH, VA) Reviewed for a 2007 Toyota Tundra — Feb 17, 2017 5:54 AM

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Bought it cause I put 35's on my Tundra and I was about 5mph off comparing to GPS. Also noticed shift points were off along with gas mileage. This calibrator not only allows you to fine tune the speedometer but it also brings the shift points back to factory settings. I am now back to 18+mpg on highway and 13-14 aound town and I am heavy on the right foot. Easy install, just make sure to zip tie to prevent rattles behind the dash. Highly recommend.

Adjusted my speedometer

Reviewed by Mario L (GULFPORT, MS) Reviewed for a 2010 Toyota Tundra — Apr 26, 2015 5:33 PM

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I'm slightly off but I need to readjust it thats all. Corrected my shift points and installation was simple. Super easy to use and program. Instructions are slightly vague but its not too hard to figure out.

Great Product

Reviewed by Nathan S (Georgetown, KY) Reviewed for a 2011 Toyota Tundra — Apr 22, 2015 3:13 AM

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The product arrived quickly and was exactly as advertised. Instructions were a little off, but useful and it worked perfect on the first try. Reading within 1MPH of two GPS units. Only took about 40 minutes to install. Very impressed so far.

Nice product, needs instructions

Reviewed by Kerry B (Celina, TX) Reviewed for a 2007 Toyota Tundra — Mar 18, 2015 1:22 PM

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The product works as described but I had to search the web to find installation instructions. NONE were included in the box. You may want to measure your tire height rather than just enter the size to get an accurate adjustment. I recommend leaving the usb cable connected to the unit, coiled under the dash so you don't have to take the dash apart to make tweaks to the settings.

Satisfaction guaranteed

Reviewed by Sheryll G (ABILENE, TX) — Mar 06, 2015 8:15 PM

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Easy install and calibration

It was easy

Reviewed by Doug M (CONCORD, CA) Reviewed for a 2013 Toyota Tundra — Feb 04, 2015 7:08 AM

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It only took 2 minutes to program, 30 minutes to install and we were right on target. Checked speedometer VS GPS speed app and we were right on the money. I have Factory Toyota Software which could not adjust for tire size, This Can!

hypertech speedometer calibrator

Reviewed by Tiffany G (Spring Valley, CA) Reviewed for a 2010 Toyota Tundra — Jul 16, 2014 11:45 AM

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I had it installed by a professional mechanic. After having it on, the quality of the ride is so much better, especially since I'm running 37" tires. Highly recommended.

Works perfect!

Reviewed by Michael D (LUBBOCK, TX) Reviewed for a 2012 Toyota Tundra — Mar 27, 2014 8:17 PM

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Great product and great installation instructions.. Spot on calibration. For 35" tires.

it works

Reviewed by Eugene S (HOCKLEY, TX) Reviewed for a 2008 Toyota Tundra — Feb 25, 2014 2:00 AM

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It works

Hypertech Speedometer Calibrator - 730103

In-line Speedometer Calibrator Module
  • $229.00 - $367.95
  • $229.00 - $309.99
    • Save 10% Use Promo Code special10!
  • Free Shipping
  • Ships By 9/25
  • What Do You Drive?


  • Part #:
  • No limits for increasing tire height
  • No splicing required! Connects to the factory wiring harness
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