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Based on 400 reviews
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1-10 of 24 reviews
  1. I bought of these for my cadillac and it was great. but I’m not seeing a option for my new car I have a 2019 jetta s 1.4 t all it show is on for the tsi 1.4 t

  2. Chip works as described. Stage 3 makes my truck so much more enjoyable to drive. Only got about 3mi to the gal. but that could be my driving now as well. Wish they could add a removal of the afm as well and just let the 8cyl motor be 8cyls. have that unit as well but can’t use both and the Thornton chip makes truck roll!

  3. Great product at a good price. I definitely noticed a power increase in my 2009 suburban but my favorite part is the shifting. It is way smoother and up a couple hundred rpm. I was hoping for more of a mileage increase but mine has 33” tires so I’d say with that difference it still increased probably 1-2 mpg and made up for tire size putting me at around 13.3 mpg. I obviously don’t drive a suburban for mileage so I’d definitely recommend this chip

  4. Made a big difference on my E550 Mercedes

  5. great product at a good price point. with in a couple of minutes my 2007 Ford Focus idle smoothed right out. I run polyurethane engine mounts. throttle response has improved as well. I am also running a manual transmission. the only thing I wish it came with is a bit better documentation on the unit, such as the gear icon on the unit. I should mention I purchased the stage 3 unit

  6. I have a stage 3 chip in my 2006 650i. At 3000rpm it hits a different level. and becomes a rocket. It feels like it now has a powerband like a 2 stroke. I recommend this product !

  7. To start my review… VERY IMPRESSED so far! I am an automotive technician, this year will be 40 years in the field. My daily is a 2015 Tacoma TRD sport 4l V6, double cab short bed, 6speed manual. Most of my daily drive is stop and go, to work and home , I have a short commute, about 9 miles one way. I bought the truck about a year ago with 98k miles on the clock, within 3 months I installed a 3&1/2 lift kit and much larger tires. I was getting 13mpg doing local driving, and 17 mpg highway, ( drove to Delaware to visit family. 3 plus hour trip one way) Installed the Thornton chip and my daily commute went from 13 mpg to 16.5 mpg!! I can feel a bit of increase when I give the throttle all of my foot, as compared to before I installed it, I will re-review next month after a long trip, to let you know the highway mileage, but pretty sure that the 17mpg is going to be in the 20”s.

  8. Just purchased this unit with stage 2 program and it works as well as they say.

  9. I purchased the stage 2 a while back and love the performance and added fuel mileage. I’m giving it to a work associate who also owns the exact same car model, but anxiously waiting for my Stage 3 that I recently just purchased !

    Thank you all for the chip!

  10. Overall its a good product for the price. You will definitely notice the difference when you spool the turbo. You will definitely notice the difference as well with the shifting of gears. Stiffer shifts.


We are a team of automotive enthusiasts based in Columbus,GA. Founded in 2008 our mission is to work with high performance vehicles in any way we can.

If you have any questions or comments please don’t hesitate to contact us.



Thorton Chip Tuning Inc 3201 Macon Rd Suite  139 Columbus, GA 31906


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