The Thorton Performance Chip for Kia vehicles is a performance upgrade designed to improve horsepower, torque, throttle response, and efficiency. Select your Kia model and engine below to confirm compatibility and get the Performance Chip matched to your vehicle.
Price range: $39.95 through $99.95 (USD)
The Thorton Kia Performance Chip is a simple plug-and-play performance upgrade designed for compatible Kia cars, trucks and SUVs. Each chip is matched to your specific Kia model and engine, giving you an easy way to enhance performance without permanent modifications.
Every stage is 100% tested and proven, backed by a lifetime warranty and a 30-day risk-free trial.
A great entry-level upgrade for drivers looking for improved response and everyday performance.
Our balanced performance option, designed for drivers looking for a more noticeable increase in power, acceleration and throttle response.
Our highest-performance option for drivers who want to unlock the maximum available performance.
The Thorton Performance Chip is the most advanced and easy way to enhance your Kia's performance. It optimizes key engine parameters for more horsepower, more torque, improved throttle response, and better overall drivability.
Our plug-and-play chip installs in seconds with no tools, no wiring, and no modifications. It's 100% safe, fully reversible, and backed by our lifetime warranty.
Choose from 3 performance stages to match your driving style and performance goals — and because the chip works only within the tolerance of the engine, it never changes settings permanently or voids your car's warranty. To return to factory settings, turn off the engine and unplug the chip.
The Thorton Kia Performance Chip is a plug-and-play OBD2 tuner for the Forte, Optima, K5, Sorento, Soul, Stinger and Telluride. The 2.0 turbo in the Optima SX and K5 GT and the 3.3 twin-turbo V6 in the Stinger respond with quicker spool and a stronger mid-range.
Popular Kia fitments on this chip: Forte, Optima, K5 GT Line, Sorento, Soul. Covers 3-, 4-, 5-, 6- and 8-cylinder engines, model years 1996 to 2026. Select your model, engine and stage and the chip ships configured for your vehicle.
82% of Kia owners choose Stage 3 (up to +60 HP); Stage 1 (+20 HP) and Stage 2 (+40 HP) are also available. Installs in the OBD2 port in about 60 seconds with no tools, is fully reversible, and is backed by a lifetime warranty, a 30-day risk-free trial and free US shipping.
Thorton Performance Chips are designed using advanced tuning technology to safely and effectively enhance your Kia's power, response, and drivability — without compromising reliability.
Unlock significant gains in horsepower and torque for stronger acceleration and overall performance.
Experience quicker throttle response for a more engaging and connected driving experience.
Feel the difference with quicker acceleration and improved performance across the entire RPM range.
Optimized tuning for a smoother idle, cleaner power delivery, and smoother shifts.
Many customers experience improved MPG depending on driving habits and the performance stage selected.
No cutting, splicing, or special tools required. Installs in minutes using your vehicle's OBD2 port.
Engineered to work within your engine's parameters for reliable performance you can trust.
Each chip is rigorously tested to ensure consistent quality, performance, and reliability you can count on.
Thorton Performance Chips are engineered to unlock the true potential of your Kia. Our plug-and-play design delivers more horsepower, more torque, and improved efficiency — safely and effectively.
The OBD2 port is typically located under the dashboard on the driver's side.
Simply plug the Thorton Performance Chip into your vehicle's OBD2 port.
Start your engine. The chip will automatically communicate with your vehicle's ECU.
Experience more horsepower, more torque, improved throttle response, and better overall performance.
Unplug the chip at any time to return your vehicle to its original factory settings.
When the chip is plugged into your car's OBD2 port, it receives real-time data through the OBD2 connection, allowing the chip to study your driving habits and modify signals sent to your vehicle's ECU.
By safely optimizing functions such as the ignition timing, air-to-fuel ratios, transmission shifting and fuel maps, the chip module provides the ultimate horsepower, torque and mileage gains.
Thorton Performance Chips optimize key engine parameters to deliver the maximum possible gains in horsepower, torque, and fuel economy — so you get more performance and more money back in your pocket.
Savings are based on maximum possible MPG improvement. Actual results will vary based on your vehicle, driving habits, road conditions, fuel type, and selected performance stage.
Delivers the ideal mixture for more power and better fuel efficiency.
Optimizes shift points for better performance and efficiency.
Maximizes combustion efficiency for more power and less wasted fuel.
Continuously learns and adjusts to get the most from every drive.
Adjusts fuel delivery for maximum performance and mileage.
Get the most out of every gallon, year after year.
The Thorton Performance Chip is compatible with all Kia vehicles manufactured from 1996 and newer, across all models and engine types.
All models from 1996 and newer.
Gas · Diesel · EcoBoost · Hybrid · V6 · V8 · V10
Designed to work with your vehicle's ECU for safe, reliable performance.
Installs in seconds. No wiring or modifications needed.
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Includes all engine calibrations, trims and market variations where the OBD2 protocol is supported. Not sure about your vehicle? Call 762-235-7265 and we'll confirm your fitment.
Everything you need to know about Thorton Performance Chips. If you have any other questions, our team is here to help — call 762-235-7265.
Yes. You will get complete step-by-step instructions for an easy installation.
You will receive one (1) Thorton Performance Chip and complete installation instructions.
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 — it leaves no traces — and install it again later.
Yes, it will work with all aftermarket upgrades as well as factory upgrades.
No. Our tuning chip is designed to work seamlessly with your vehicle and will not cause any dashboard errors or warning lights.
No special skills are required. Just plug the chip into your OBD2 port and follow the simple instructions included.
Thorton Performance Chips are engineered to fit a wide range of models and engine types. Be sure to select the correct make, model and engine of your vehicle when purchasing.
Yes. Simply unplug the chip and your vehicle will return to its original factory settings. There will be no stored codes or traces.
Many customers experience improved MPG depending on their driving habits and the performance stage selected.
We offer a 30-day risk-free trial. If you're not completely happy with the results, return it within 30 days for a full refund.
Read more: What is chip tuning? · Does chip tuning void your warranty? · Is chip tuning safe? · All FAQs
Installs in seconds. No tools, no wiring, no modifications.
Real-time adjustments for maximum performance and efficiency.
Designed to work within your vehicle's ECU for safe, reliable performance.
Works with all Kia engines from 1996 on for the perfect fit and tune.
The ultimate companion to your Thorton Performance Chip. See real performance gains, monitor engine health, and diagnose issues — all from your phone.
Kia Performance Chip
The companion to your Thorton chip. See real performance gains, monitor engine health and diagnose issues from your phone.
$59.95 on its own. The $10 comes off automatically when a Thorton Performance Chip is in the same order.
Wow! This upgrade is amazing! I can feel the difference in my car. Especially when I set the vehicle in sport mode with this chip upgrade.
Fast Delivery. No one can beat the price on a performance chip stage 3 that gives 60 more hp. My 2026 Kia K5 GT has a brand new attitude along with being brand new itself with this chip plugged into it. Thank you Thank you Thank you.
Sure gave my Optima SX a burst of power. I dont know if I’m getting 60 extra hp, but I feel better acceleration and am getting better fuel economy on top of it. I would recommend this chip to any Kia owner wanting to improve their performance.
Got it in reasonable time and simple instructions. Plug and play it was a different car when I let the clutch out in first gear. All gears pulled strong and it got to my cruise speed in almost half the time of before. Can’t wait for the next purchase from Thornton. Thank you guys for a great performance product.
Received my delivery and got it all plugged in, and the average mpg reading on my dash already reade +2 mpg after a 50 mile drive… THANKS!!