Reviewed By Andrew H (CLARKSBURG, WV) Reviewed for a 2013 Jeep Wrangler —11/18/2014 6:50 AM
When I bought this I wasn't expecting a miracle, I drive a Wrangler I expect not to get great gas mileage. That said without changing anything else and just using the 87 tune I saw about a .5-1mpg increase in mileage.
it shorted out my ecu
Reviewed By James D (SAMMAMISH, WA) Reviewed for a 1992 Jeep Wrangler —8/7/2014 11:26 PM
not happy with jet after talking to there tec about the code that came on. and the engine would not start.he said it was the wrong one and would not work. even though the instructions said it was for a 4,0