I suggest you read their "
Terms of Service" about 4-5 pages long and is done in a way so not easy to read
Their claim of UP TO 40 HP gain (they do not state if that is flywheel, rearwheel and only at sea level)
Their claim that it would not void gm warranty is total BS
Does not state if it would cause failing smog testing
Says your money returned only for first 30 days
They will not pay for any damage due to use or due to loss of GM warranty
Looking at their website, I suspect this really comes from China and they are just resellers
As I have tuned hundreds of GM vehicles since 1995 I can see they are pissing in the wind and show no proof at all of that their "cookie cutter" generic tune cannot assure their statement that their product will not harm the engine and/or tranny
You can buy these from Ali Express website which is in China for $42 US so you clearly see that vendor is a scam artist
Seems this tune in a box has caused problems enough for this to be written for all cyberspace to read
www.performancechipguide.com
A few of the suckers who did buy this "canned" tune
This chip is bout as useless as a clogged fuel filter on a bicycle.
I purchased one (sucker me) stage 3 and tested it on several road trips with zero gain in fuel mileage. And to top it off, HP gain is zip, none.
I now use it as a display in our automotive business of what not to ever purchase for your vehicle.
It's a great conversation piece when a customer ask about added performance for their trucks and cars.
Purchased this stage 2 chip for my 2015 Toyota Tundra before throughly investigating reviews.
After installing the chip and running it for three weeks, I cannot tell any difference in performance, gas mileage, anything - nothing, zip, nada. E-mailed Thornton Performance Chip company and got same performance from them as the chip gave - nothing, zip, nada.
This thing is nothing but a scam. DO NOT BUY !! Fool me once, shame on them, fool me twice, shame on me. Repeat: SCAM- DO NOT BUY !!!!
I bought it in hopes for a small fuel gain 2019 ram 1500 its total crap doing my normal 70 mile trip phx to mesa every day untuned i get about 16.5mpg (math done on pump gas not dash test) with tuner on for a month i was getting 13.2mpg no noticable difference in power and after nearly a month i noticed 8 speed trans started shifting funky almost slipping when slowing for a red light then getback on it to go at green but not making a full stop was hoping for imprivement got crap sadly took me over money back time line to learnit all so hopefully my loss will help others dont bother with this trash