Not sure which 2007 GMC Yukon XL Power Programmers & Performance Tuners are right for you? We have over 5642 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Easy to use and easy to install. This item did exactly what it said. I purchaed my '09 Jeep Wrangler Rubicon with oversized tires (35 in. dia.) and from the dealer, the speedometer was way off and I was buring all sorts of fuel. After the reprogram, it was great. Gas was pretty good and the speedometer was right. Too bad the dealer (Chapman Jeep in Scottsdale, AZ) did not opt to correct, even though the item was purchased as they designed from the lot! All well, Hypertech took care of the problem at a reasonable price. One drawback, error codes must be called on and tech support is only open M-F (banker hours). If you purchased on the weekend, well, you just have to wait because the codes are not easily found...even online." —Richard B from Thatcher, AZ bought a Hypertech Max Energy Programmer for a 2007 GMC Yukon XL, 3.8L V6.
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