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Brand: Hypertech
Speedometer Calibrator Hypertech 730123
Speedometer Calibrator corrects speedometer readings for tire size and gear ratio changes.
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Speedometer Calibrator Hypertech 730123
When installing tires that are larger or smaller than original equipment tires, and/or a ring and pinion gear set with a different rear gear ratio, the Speedometer Calibrator allows you to correct speedometer readings.
The vehicle’s computer calculates your speed based on the diameter of the stock tires.
If taller or shorter tires have been installed, or the rear gear ratio has changed, the vehicle’s computer does not know how fast your vehicle is going.
As a result, the speedometer readings will not be accurate (as required by law).
Using the USB cable, connect the In-line Speedometer Calibrator Module to your PC and enter the new tire height and/or rear gear ratio.
Next, disconnect the factory connector to the instrument cluster (behind the dash), snap in the Speedometer Calibrator Module, reconnect the cluster, and you’re done!
In a matter of minutes, you can accurately correct your speedometer readings.
Key Features
Specifications
- Length
- 8.0 lb
- Width
- 8.0 lb
- Height
- 1.75 lb
- Weight
- 0.55 lb
- ASIN
- B01CAORWOU
- UPC
- 759609049636
- Ships From
- United States
- Brand
- Hypertech
Frequently Asked Questions
About Speedometer Calibrator Hypertech 730123
01 What does the Speedometer Calibrator do?
The Speedometer Calibrator corrects speedometer readings for tire size and gear ratio changes.
02 How does the Speedometer Calibrator connect?
Using the USB cable, connect the In-line Speedometer Calibrator Module to your PC.
03 What is required for installation?
Installation requires disconnecting the factory connector to the instrument cluster and snapping in the Speedometer Calibrator Module.
04 What is the ASIN for this product?
The ASIN for this product is B01CAORWOU.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 759609049636.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Aug 28.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

