Review on ๐ Advanced Performance Chip/Power Programmer for Jeep Cherokee & Grand Cherokee 2.0L, 2.4L, 2.5L, 3.0L, 3.2L, 3.6L, 3.7L, 4.0L, 4.7L, 5.2L, 5.7L, 5.9L, 6.1L, and 6.4L - Maximize MPG & Horsepower! by Ricky Bedell
That does not work. I got 14.1mpg.
Doesn't work. I got 14.1 MPG on my 2006 3.7L Grand Cherokee before and after installation. No increase in performance. Don't waste your money here. That's a lie, I should have believed the negative reviews but I thought maybe they got it wrong. No, it just doesn't do what it promises.
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