



CT Tuning ECU Flash Audi A4 45 TFSI 245hp B9 2019-2021
$1,000.00

CT Tuning ECU Flash Audi A4 45 TFSI 245hp B9 2019-2021
$1,000.00
- Description
- Additional information
Description
Experience a complete transformation of your Audi A4 45 TFSI (2019-2021) with an CT Tuning ECU Flash. This custom recalibration for the B9 platform optimizes power delivery, improves throttle response, and enhances overall drivability.
Crank Horsepower Ratings:
- Stock Power: 245hp | 295hp
- Tuned Power: 273ft/lbs | 328ft/lbs
ECU Flash Options:
- Vmax Off – Adjustment of factory top speed limiter
- Race Exhaust – Calibrated for full race exhaust systems
- Pops & Bangs – Adds aggressive exhaust overrun (Requires full race exhaust system)
Why Choose CT Tuning:
- Proven tuning files tested for safety and reliability
- Compatible with basic bolt-on performance parts
- Automatic adjustment for higher octane fuels
- Fully reversible to factory settings
How to Flash Your ECU:
This process requires a bench flash. Remove the ECU and ship it to our facility. We will back up your software, apply the tune, and return the unit via your chosen shipping method.
ECU Reference:
- Bosch MG1CS001
Vehicle Fitment:
- Audi A4 B9 45 TFSI 2.0L 2019-2021
Product Notes:
- Power ratings are converted from PS/NM and may vary slightly from advertised figures.
- Tuning must be used within 6 months of purchase.
- Support is available for 30 days after file delivery.
- Future modifications if supported or OEM software updates require a $350 file service fee.
- No refunds once software is issued or locked to a vehicle.
- Emissions readiness is not forced; original files are provided for return to stock.
Additional information
| Weight | 5 lbs |
|---|---|
| Dimensions | 13.25 × 11.5 × 2.38 in |
| Make | Audi |
| Model | A4 |
| Product Year | 2019, 2020, 2021 |
CT Tuning software is purchased with the intention of using these products for Racing Competition Only. As the authorized purchasing party, you understand that some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. As the buyer, you take responsibility to ensure that any modifications or upgrades that have been done to your vehicle conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. To make a purchase, you will be required to sign a waiver acknowledging that these products are intended for Racing Competition Only and not meant to be used on a road car.

