Dyno image: stock VB WRX, 91-octane test. Individual results vary.
FAST WC × TurboTekTuning
VB WRX OTS Tune · 2022–2026 Subaru WRX 6MT
288 WHP / 335 WTQ · +46 WHP / +95 WTQ over factory · Rev hang deleted
2022–2026 Subaru WRX 6MT Custom OTS Tune
FAST WC Performance Exclusive
Skip the generic tune and unlock up to +46 WHP in your 2022–2026 Subaru WRX.
Developed specifically for the VB WRX with a 6-speed manual transmission, the FAST WC OTS Tune delivers sharper throttle response, smoother power delivery and greater horsepower than the factory calibration and standard COBB OTS maps.
Custom developed by Dave Brown and Ray Arroyo, this 93-octane calibration produced 288 WHP and 335 WTQ, gaining +46 WHP and +95 WTQ over the factory calibration on a stock vehicle.
Every FAST WC OTS Tune is developed and extensively tested on both the dyno and the road to deliver smooth, predictable, and safe power. These are the same tunes we confidently run on our own cars every day.
Expected WRX Power Gains
Compared with the standard COBB OTS map, the FAST WC calibration typically delivers greater wheel horsepower, stronger response and a smoother overall driving experience.
Dyno results will vary based on fuel quality, environmental conditions, vehicle condition and installed modifications.
Drivers can expect a noticeable increase in performance, improved boost response, smoother power delivery and sharper throttle behavior. Actual results may vary from one vehicle to another.
Why Choose the FAST WC WRX OTS Tune?
Generic OTS maps must support a broad range of vehicles and operating conditions. The FAST WC tune was developed specifically for the 2022–2026 VB WRX platform to provide a more refined and responsive calibration.
| Feature | Factory Calibration | Standard COBB OTS | FAST WC OTS Tune |
|---|---|---|---|
| Dyno Results | 242 WHP 240 WTQ |
271 WHP 304 WTQ |
288 WHP 335 WTQ |
| Throttle Response | Conservative | Improved | Sharper & More Responsive |
| Power Delivery | Factory Calibration | Improved | Smoother & More Refined |
| Boost Control | Factory Strategy | General OTS Strategy | Optimized Boost Control |
| Developed For | Mass Production | Generic OTS Calibration | Purpose-Built for the 2022–2026 VB WRX |
| Fuel Support | Factory Fuel Mapping | 91 / 93 Octane | 91, 93 & ACN91 Available |
| Rev Limiter | Factory Limit | Map Dependent | 6,400 RPM |
Trusted by Subaru Owners
Tuned by Proven Subaru Performance Specialists
This calibration was developed through the combined experience of Ray Arroyo of TurboTekTuning and Dave Brown of FAST of West Chester—two respected Subaru performance specialists with extensive hands-on knowledge of Subaru tuning and the FA24-powered VB WRX platform.
Ray and Dave worked together to develop and test an OTS calibration that delivers the balance WRX owners are looking for: stronger power, smooth drivability and dependable performance for everyday driving.
Rather than chasing a peak dyno number, the goal was to create a refined calibration that improves throttle response, boost control and power delivery while maintaining the reliability expected from a properly maintained daily-driven WRX.
The result is a tested, proven OTS tune backed by the combined expertise of TurboTekTuning and FAST of West Chester.
What's Included
- FAST WC Custom OTS Stage 1 calibration file
- Your choice of 91 Octane, 93 Octane or ACN91 calibration
- Email delivery within two business days after receiving your Accessport serial number
- Calibration for a stock vehicle or a supported intake configuration selected during checkout
- COBB ProTuning calibration file for installation through a COBB Accessport
Tune Features
- Reduced false knock events
- More precise boost control
- Rev limiter increased to 6,400 RPM
- Optimized throttle response
- Improved MAF scaling
- Smoother power delivery throughout the RPM range
- Greater power and responsiveness than the standard COBB OTS calibration
Who Is This Tune For?
This tune is a strong fit for drivers who:
- Own a 2022–2026 Subaru WRX with a 6-speed manual transmission
- Have a stock vehicle or supported intake configuration
- Want more performance than the factory or standard COBB OTS calibration
- Want an affordable upgrade without purchasing a full custom tune
- Want stronger performance while retaining smooth daily drivability
How Ordering Works
- Place your order and select your vehicle configuration and preferred fuel type.
- Tune only: enter your COBB Accessport serial number in the order form. Bundles: your Accessport ships with the order and we confirm the serial with you.
- Your calibration will be prepared for the supported modifications selected during checkout.
- Your tune will be emailed within two business days after your Accessport serial number is received.
- Use your COBB Accessport to transfer and flash the calibration to your WRX.
Vehicle Compatibility
- 2022 Subaru WRX 6MT
- 2023 Subaru WRX 6MT
- 2024 Subaru WRX 6MT
- 2025 Subaru WRX 6MT
- 2026 Subaru WRX 6MT
Not compatible with CVT-equipped Subaru WRX models.
Installation Notes
Before installing the calibration, update your COBB Accessport to the latest available firmware.
If the Accessport displays a message indicating that the calibration does not match the vehicle's installed firmware, select “Yes” to continue. The Accessport will flash the ECU normally and update the ECU firmware during installation.
Frequently Asked Questions
Do I need a COBB Accessport?
Yes. A compatible COBB Accessport is required to install this calibration. The Accessport itself is not included with this product unless otherwise stated.
Will this tune work on a completely stock WRX?
Yes. This calibration is designed for a stock 2022–2026 WRX 6MT or a vehicle equipped with a supported intake system selected during checkout.
Is this a full custom tune?
No. This is a Custom Off-The-Shelf calibration. Data-log reviews, revisions, map adjustments and fully custom tuning are not included.
How quickly will I receive my tune?
Your calibration will be emailed within two business days after FAST WC receives your COBB Accessport serial number.
Can I use this tune with future performance modifications?
Only use the calibration with the modifications selected and approved during checkout. Additional performance modifications may require a new calibration or full custom tune.
Can I upgrade to a custom ProTune later?
Yes. FAST WC offers a discounted upgrade to a full custom ProTune when you add modifications that require additional calibration.
Important Purchase Information
This purchase includes a COBB ProTuning calibration file only. It does not include a COBB Accessport, physical parts, installation labor or mechanical diagnostic services.
This is an Off-The-Shelf calibration. No data-log reviews, custom revisions, map adjustments or additional tuning services are included.
Your vehicle must be in good mechanical condition before purchasing or installing this calibration. FAST WC calibrates the tune only for the modifications selected during checkout.
Vehicles with existing mechanical or electrical problems are not eligible for refunds. FAST WC is not responsible for diagnosing or repairing pre-existing mechanical or electrical issues.