TS Performance Part # 1180411 Diesel Performance Horsepower/Fuel Economy Switchable Chip

I spent a month and about $25 in postage mailing this thing back and forth before I gave up and asked for a refund. You can read details below, but I would highly recommend spending a little more money and saving yourself a lot of aggravation.I purchased this chip not knowing it would require the seller to do the programming to match my vehicle. He programmed it wrong, so I mailed the chip back to him and he programmed it wrong again. Then I mailed the chip to the manufacturer and they programmed it wrong. That's when I asked for a refund. The seller charged me a restock fee because he said nothing was wrong with the chip. I agree that there was nothing wrong with the chip, the problem was their inability to program and their overall lack of concern to program it correctly. After dealing with these guys for over a month, I purchased and installed a chip from another manufacturer. It works great right out of the box.

far above my expectations out of the box with the TS tunes. I daily drive on the +50hp setting and am getting a no kidding 4mpg more than before. previously 14.5 avg, now 18.5avg. And waay more power at the click of a switch. the +140 setting will probably kill my tranny if i mess with it too much.

The power it gives my excursion is pretty amazing. I installed myself, and works good. Only problem is security light blinks and check engine light comes on.

Works great on my 2000 x. Not sure the tranny likes it.....but my right foot does. Mileage seems 3 to 4 better per gallon also.....

Worked great would recommend