The Thorton Performance Chip for Subaru vehicles is a performance upgrade designed to improve horsepower, torque, throttle response, and efficiency. Select your Subaru 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 Subaru Performance Chip is a simple plug-and-play performance upgrade designed for compatible Subaru cars, trucks and SUVs. Each chip is matched to your specific Subaru 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 Subaru'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 Subaru Performance Chip is a plug-and-play OBD2 tuner for the Outback, Forester, Impreza, WRX, Crosstrek and Legacy. The turbocharged 2.0 and 2.4 boxer engines in the WRX and Outback XT spool sooner, and the naturally aspirated 2.5 gains a sharper throttle and mid-range.
Popular Subaru fitments on this chip: Outback, Impreza, Forester, WRX, Crosstrek. Covers 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.
77% of Subaru 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 Subaru'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 Subaru. 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 Subaru 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 Subaru 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.
Subaru 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.
chip does well! very noticeable increase in power and gas mileage. very glad I did this upgrade
I bought the stage 3 chip for my WRX. I started running it as soon as I got the chip. Nice longevity if I’m just cruising around, and a fun bit of pep if I put my foot in it. Definitely worth the money for a pnp upgrade.
I have an 08 Subaru Legacy limited. I was just wanting a better throttle response and was hopeful for some boost in hp and maybe saving some mpg… Well this chips definitely did NOT disappoint! The throttle response and all around more ‘crisp’ driving experience was pretty much right away after install… but definitely noticeable within the first 10 miles…. After day 2 and my normal drive from my house to my work which is around 38 miles and I can definitely tell the difference in gas mpg . That round t trip would normally take around a half tank! And now I’m at around a quarter tank round trip.! It cruises at 70mph on the freeway without any thought and when I need to pass, it’s a lot easier than it had been previously..
I would recommend to anyone no matter what you’re driving, if you was t to improve just the overall feel of your drive ,l would for sure recommend the stage 3 chip!
I recently installed the stage one chip in my 2008 Impreza and I’m really impressed with the performance and mpg gain I now get 27 mpg around town
I can`t believe Subaru does not already use this chip. The difference is amazing. My 4 cyl non turbo outback runs very very good. I bought my outback about one and a half years .ago 06/24 It had 3 miles on it . I took my time breaking it in so I could feel the performance improve . I did a trip to Seattle from Vegas and a couple trips to Yuma. When I put that Thorton Chip into my outback I was amained how much better it ran. Buy one you can thank me later