FAQs
Will it come with instructions?
Yes you will get complete step by step instructions for easy install.
What is included in this purchase?
You get one (1) Performance Chip From Thorton Chip Tuning and installation instructions.
Will this void my warranty?
Absolutely not. Our tuning chip will not void any warranties. If you have a very strict underwriter on your warranty you can simply unplug the unit before taking your vehicle in for service with no traces and install it later.
Will this work with aftermarket performance upgrades?
Yes, It will work with all aftermarket upgrades as well as factory upgrades.
Will I get any errors on my dash board after installing this tuning chip?
Our tuning chip will not cause any dashboard errors or warnings.
Do I need any special skills or tools?
No special skills are required. Just plug into your OBD2 port and follow simple instructions included.

Will this module fit my 4cyl, 6cyl, 8cyl?
The Thorton Performance Chip will fit all engine sizes and types for your make of vehicle. Be sure to select the correct Make, model and engine of your vehicle when purchasing.















Have a 2016 Mazda 3 S Grand Touring w/ the 2.5. I added an intake quite a while ago. Just recently bought the Thornton stage 3 chip. Amazing! Significant acceleration improvement, smoother idle, not sure of how much mpg gains yet. It brought my intake to life and it sounds incredible. Kudos to the Thornton team for high quality product!
Mazda Miata MX5 before it was fast. After following the steps to tune, at 4 a.m. I got on the interstate no traffic I let off at 135 mph @about 5000 rpm it red lines 6750. I had installed a high performance air filter before the chip was installed. It gets about 35 mpg if I drive it easy. 27 mpg when I have a little fun.
the best money that i have spent on my car. i am very happy with my stag 3 chip. i have a 2002 mazda millenia 2.5. i installed the chip 250 miles ago. i am very pleased with it. thanks guys. great people to deal with.
This really works great ! I was skeptical at first but I’m now a believer!! Thanks for the gains!!
Bought for my 05 mazda rx8 stage 3 wow this thing works perfectly does everything they say it will . Car runs and drives better than ever