Bullydog for Jeep JK
The Tuner is well made and instructions are very good. Only downsides are the it only has 4 maps for my Jeep JK, the head unit is small, and then menus are confusing. Overall it does what it says it does and I went from 14 MPG to 17.5 MPG. A pretty good bump for a Jeep. The tire size tool fixed my laggy speedo(-5MPH) back to the correct speed. Overall worth the money, but it needs a little more work like more maps and a little bigger screen.
05 Wrangler Tuner Install
Well...I was kind disappointed in the lack of tuner programs available once I received this. Although the ad did indicate that not all tunes would be available for all models mine only had 4 and not one of them was a performance tune. The directions could expand their definitions of the different tunes a little better also.