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Katy Performance Chips

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Latest Customer Reviews

Hypertech Speedometer Calibrator Reviews

Good product, does what I needed it to

Reviewed By Kyle G (LEWISVILLE, TX) Reviewed for a 2016 Ford F-150 —9/12/2016 8:06 AM

As my title states, it's a good product and calibrated my speedo since I put 35's on. The only reason I give it 4/5 starts instead of 5/5 is because I had to put 33's in the programmer to calibrate my speedo correctly. When I put 35's and went for a drive, my speedo read 70mph when I was barely doing 60mph, what the heck? So I had to calibrate my truck about 4 times to get it dead on which was a bit annoying, but it eventually worked. Worth the $200 for me, I can't stand my speedo being off!

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Hypertech Speedometer Calibrator Reviews

Hypertech Calibrator keeps it all legal

Reviewed By Ronnie R (Corpus Christi, TX) Reviewed for a 2014 Ford F-150 —8/5/2016 4:53 PM

Purchased this after having my son's truck lifted with 35" tires. We wanted to capture his desire to have the look of a big truck while still maintaining the correct speedometer readings and transmission shift points. The system does require you to use a Windows based PC to update the unit to the most recent software package (it is not Mac compatible), but other than that it is very straight forward to use. Hook it to the OBD port, input your tire size and allow it to update your ECM, that's it.

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Hypertech Speedometer Calibrator Reviews

Worked well!

Reviewed By Shane P (MOORE, OK) Reviewed for a 2015 Chevy Silverado —6/10/2016 4:39 PM

Worked as advertised. My calculations say my tires are 34". With truck weight they measure about 33.5. That is the number I used and it put GPS spot on. Truck seems to be shifting back into 4 cal mode more regularly now helping to boast mpg. Worth the investment.

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