GREAT customer service I recently bought a GTE Stage 1 OBD2 TUNER for my 19 Abarth spider 124 and love it. Got it within days ! I then ordered a code reader, but only goymt the order confirmation for order 162080. I called after a couple of days and got right thru and it was resolved ! I will be doing more business with the for sure.... VERY RESPONSIVE

Does not work as Advertise at all! I got the chip stage 2 for my RAV4 and I let it in the car for 3 weeks (instead of the 2 suggested) and not only didn't improve the miles or give me more power but on the contrary I felt the SUV to be more lethargic then usual, and the miles when down by 3! I paid for shipping back ($11.15) and they also charge me 15% restocking fee?!?@ Their website states 100% money back warranty. I will not recommend this company to my worst enemy!! Update: They reply with lies as you can see below. I have contact them and send it back in the original box with no a scratch in the time allow. I have all corresponding messages and pictures.

Does what it says I purchased a stage 2 chip for my 97 pickup and noticed a difference right away. Power, throttle response. Haven't seen a huge change in gas mileage yet probably because I have been enjoying the new feel of the truck a bit much.

So people if you get one through three stages you want be disappointed ! Well people like they advertise that it is no gimmick, well it's not I got a stage two for my 2014 Silverado and another of the same for my son , he has a beautiful 2011 black SS Camaro that still has under 50.000 miles on it and you can tell the acceleration in both his and mine such a big difference! That is what I like about the chips there is no hesitation anymore and when you are rolling down highway o yea and hit it around other slower traffic big difference. Now as far as gas mileage well I think it is about the same that I was already getting ,but I am very happy with them . I have got two other friends to get them and counting . Alright Smarttune performance chip manufacturer all that I put in this review is true and very happy. I should get a stage three for all the sales I have sent your way lol .

GTE Stage 1 Chip 2018 Maxima Like many people, I was a bit skeptical about buying a so called “performance chip” to plug into my OBD2, as the online forums for my car state that even the best tuners out there haven’t been able to crack the ECU or do much to enhance the performance for it. But I decided to give it a chance, and for $99 and 60-day guarantee what did I have to lose? It came in 3 days just as the sales rep told me, and after about 15 mins of installation I noticed a major difference in the power and torque/throttle response, no placebo effect here. I drive my car regularly all day most days and am very accustomed to it’s characteristics, and though the 8th gen Maxima is already a quick car, this chip added that missing “fun-factor” I was looking for! Couldn’t be more pleased with this product especially for the money. I’d imagine it could take $1-2k to get the same effect other ways. Only other mod is K&N drop in filter which I already had for a while and run 93 octane. Now I’m just curious about the Stage 3!