So I bought this performance chip about a month ago. I installed it and that itself was very easy! I emailed the manufacturer and within a day they gave me specific installation instructions for my 2014 Nissan Pathfinder. I get about 4 mpg highway and about 4-5 more city. Overall I can say the chip has improved my car's performance, it accelerates faster, idles better and I got about 50mpg per tank of gas. Note that this works differently for every car and also for different driving habits! I personally noticed the difference!
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