Review on 🚀 High-performance Chip/Power Programmer for Hummer H3 3.5L, 3.7L, and 5.3L - Boost Fuel Efficiency, Save Gas & Increase MPG, Enhance Horsepower & Torque! by Joseph Lang

The chip is amazing! I have a 2007 Hummer H3 with a 3.5 liter inline 5 engine (see attached photo). Previous News: Installation was easy - just follow the instructions. and you will do it without much effort. A few wires and you're done! The results were as follows: A noticeable increase in performance from the first start (I can't tell how much without a dyno). Good throttle response and pleasant mid-range performance. MPG: I got 3.2mpg on my first tank of gas! Combined city/highway transport and real estate. I think it's great that it worked right away! I would recommend buying this chip anytime and will buy it again. Especially for the price given these results.