Review Time
I purchased a stage 3 for my Subaru outback, after driving over 700 miles I only noticed a 2 mpg difference, throttle response seemed better and so did the power . I reached out to the company via the chat and the company's response was quick , they suggested a reset ,which did not work then offered to exchange it for a different one . After receiving the new one and driving over 150 miles I only noticed 1 mpg better . After all that the 30 days has expired ( go figure ) .
Overall the chip is a failure does not perform as advertised, don't waste your money.
I purchased a stage 3 for my Subaru outback, after driving over 700 miles I only noticed a 2 mpg difference, throttle response seemed better and so did the power . I reached out to the company via the chat and the company's response was quick , they suggested a reset ,which did not work then offered to exchange it for a different one . After receiving the new one and driving over 150 miles I only noticed 1 mpg better . After all that the 30 days has expired ( go figure ) . Overall the chip is a failure does not perform as advertised, don't waste your money.
Terrible product, terrible customer service. Do not waste your money. The performance chips no matter what stage may cause damage on your vehicle. They will fight like no other to return and won’t refund any shipping charges including the charges to return it if you can make it happen. Yes it’s a legitimate business but it’s a scammy business better off shopping at Temu
Purchased a stage 2 Thorton tuner module, then after installing it and driving the recommended 150 miles, we watched our 2025 KIA Sportage Hybrid SX Prestige loose mpg. Before the install we were averaging 38-40MPG, after install we lost 6+ mpg averaging 32-33mpg. The module curves the power-band air/fuel mixture with very high revs.We emailed the customer support and we were advised to reset the module, then reinstall it and then drive more miles again.We had enough and told them we wanted out money back. They said "unfortunately your past the 30 day money back guarantee (by 4 days) we can only replace it for you.Customers beware!!"Negative highlights"The owner of the website is using a service to hide their identity on WHOIS.This website has received mainly negative reviews
!!!!!!!!!!! SCAM ALERT!!!!!!!!They scammed me into keeping the chip for replacement promising to process a return if the second chip did not work. Then when the 2nd chip did not work she told me I was past my return window and I could not return it. I kept on fighting with her but she kept going around in circles and eventually hung up on me. This is a strategic scam company, DON'T TRUST THORNTON CHIP TUNING!!!!!
DO NOT BUY!!!Purchased two for two different vehicles. Received 3 and was charged for 3. These are NOT returnable as per the fine print due to being on sale. They are permanently marked at 50% off. I received the same exact module with different stickers on the boxes. Installed anyway as I already spent the money. Waited for performance gains as per the instructions. Almost a month later and no power or fuel economy difference. Save for a real tune. This is a fake and a complete waste of money. Total garbage.
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