Reviews for Superchips 3571 Flashcal F5 Programmer for 07-18 Jeep Wrangler JK

Easy to use

Like another reviewer stated, worked perfectly for adjusting speedometer and other basic settings. Don’t like the price and they have the market cornered.

I had the initial problem of too slow a speedometer for my 35s on my JKUR. Said I was running about 55 when it was running 52-53 MPH. I found setting the tire size to 35 was too much and then I had the opposite problem - said I was running 58 when I was running 55. (I used a GPS to get exact speed).

Did some math and set to 33.5 size tires and and that made the speedometer match the GPS almost exactly. Yeah! Math works!

The interface is super simple to use and the unit had zero problems - has more features than I know what to do with. It was important to me to get the speedometer set correctly. Also convenient to adjust other interior settings like lights and delays.

I’m happy.

Bought this to adjust my speedometer and dash panel after upgrading to 35" tires on my '17 JKU Rubicon Hard Rock. Was able to update the programmer easily and adjust the specifics on the Jeep within just a few minutes. Personally, it is a bit pricey (thus the 4 stars) but Quadratec has it competitively priced. Very happy with my purchase.

Easy to use and works great, would have given it 5 stars but like a lot of others it took many trial and errors to get the speedo to read correctly. I have 35'' tires but they measure closer to 34'' but I had to use 33'' in the programmer to read right.

I guess i have nothing bad to say about this product other than it was a steep price to pay just to change my tire size so my speedometer would be right. And an even steeper price if i want to have the option to use it as a tuner. But if you get past the cost it does what you want it to do.

Does ad advertised. Super chips left a contact number vs a website address to contact them about upgrades.

The Flashcal is easy to use and does the job. My only gripe is that the unit locks itself to the VIN of the first vehicle that you connect it to. So don't connect it to your buddies Jeep before your own or you'll be really upset.

I only used it for tire size. Very easy to use

Good for setting correct tire size. Upgraded to the Flashpaq and not impressed with the fuel mileage tunes.

Works ok for changing tire size and that's about it. Wish I would have just got the flashpaq