Product Overview
McLaren 650s ECU Tune – Performance Software Upgrade By German AutoHaus
Unlock the full performance potential of your McLaren 650s with a custom ECU Tune by German AutoHaus. This mail-in ECU tuning service is engineered to deliver increased horsepower, torque, and throttle response while maintaining factory-level drivability and reliability. Each calibration is developed using real-world testing and data logging to ensure optimal performance across all driving conditions.
Key Benefits
- Increased horsepower & torque
- Sharper throttle response
- Improved mid-range and top-end power
- Optimized power delivery
- Maintains factory drivability
- No permanent hardware modification
Multiple ECU tune options are available, including Stock Performance (Catless), Stage 1, Stage 2, and Stage 3 custom tuning, as well as optional pop & bang features. Availability depends on vehicle configuration.
Stock Performance (Catless Configuration)
Off-road / track use only
Designed for customers who have installed catless downpipes but wish to maintain factory power levels. This calibration preserves OEM boost and ignition timing while applying fuel mixture corrections only to optimize air/fuel ratios for safe operation without catalytic converters.
Highlights
- Maintains factory horsepower and torque levels
- Factory boost and ignition timing retained
- Fuel mixture optimization only
- Supports vehicles equipped with catless downpipes
- Ideal for track-only or off-road applications
Steso Performance offers Bench Flash tuning method:
- For this method, the ECU needs to be shipped to us for reprogramming.
- After completing your purchase, you will receive an email with a download link and comprehensive instructions on how to prepare your ECU for shipment.
- Please include a completed ECU Information Form when sending in your ECU.
Why Choose German AutoHaus ECU Tuning?
German AutoHaus specializes in high-performance European and exotic vehicle tuning, with proven experience in McLaren, Lamborghini, Ferrari, BMW, and Audi platforms. Every tune is developed with reliability, performance, and longevity in mind.
- Custom-tailored Performance: Our tuning solutions are developed to maximize the potential of your engine while maintaining reliability.
- Easy Reversion: We save your original ECU settings, so you can revert to factory settings whenever you want.
- Expert Support: Our specialists are available to assist with the installation process and any questions about the tuning methods.
Shipping Details for Bench Flash:
- Shipping Costs: The customer is responsible for shipping the ECU to and from Steso Performance.
Return shipping is calculated at checkout. - Fast Turnaround: We guarantee your ECU will be tuned the same day it’s received. We will ship it back using the same method in which it was received (Ground, Overnight, etc.).
Talk to a Specialist:
Contact a Steso Performance specialist to discuss the best tuning method for your vehicle and learn more about the installation process.
Return Policy
Due to the custom nature of ECU tuning services, all sales are final once the ECU has been programmed. No returns or refunds on tuned ECUs.
IMPORTANT INFORMATION:
All our products are intended for closed-circuit use only. This tuning service is not compliant with the California Air Resources Board (CARB) and is not legal for use on public roads in California. Performance gains are subject to environmental conditions and the dynamometer model used.
Disclaimer
Disclaimer for ECU Tuning Services
- Performance Enhancements: While Steso Performance aims to provide significant performance improvements through ECU tuning, actual results may vary based on individual vehicle conditions, including but not limited to maintenance history, modifications, driving habits, and environmental factors.
- Closed-Circuit Use: Our ECU tuning services are intended for closed-circuit use only. This product may not comply with local emissions regulations and is not approved for street use in certain jurisdictions, including California. Customers are responsible for ensuring compliance with all applicable laws and regulations.
- Warranty: Tuning your ECU may void or affect your manufacturer’s warranty. Steso Performance disclaims any liability for warranty claims denied by manufacturers due to ECU modifications. It is the customer’s responsibility to check with their vehicle manufacturer regarding warranty implications.
- Installation and Responsibility: Customer assumes full responsibility for the proper installation and use of the tuned ECU. Steso Performance is not liable for any damage, failure, or loss resulting from improper installation, misuse, or lack of maintenance.
- Liability Limitations: Steso Performance is not responsible for any consequential damages arising from the use of our tuning services, including but not limited to engine damage, loss of vehicle functionality, or other associated costs.
- Shipping and Handling: Customers are responsible for all shipping costs associated with sending the ECU to and from Steso Performance. Return shipping costs will be provided at the time of purchase.
By utilizing our ECU tuning services, the customer acknowledges and agrees to this disclaimer and understands the potential risks and benefits associated with ECU modifications.
