Good, but could be better
I bought this product for my 2008 dodge avenger R/T. With the chip installed i have noticed a more responsive acceleration and it does seem to help on the gas milage, about 1-2 mpg highway. Unfortunately i have noticed that 5th or 6th gear when i am at lower speed, 35-45 mph, that it will slightly rev the engine when i have constant pressure on the accelerator. I later found out that this chip is the same for all dodge V6's of the same year. So this chip is not specifically programed for my 3.5L, and it will run on a 2.7L. That is my only real complaint, if they had made it just for the 3.5L then it would probably have an excellent rating.