Unlock serious performance with the AReeve Plug-in Tuning Box for BMW G87 M2, G80 G81 M3 and G82 G83 M4 (2021+). This premium, made-in-Germany piggyback tuning module is the fast, safe and fully reversible way to add real-world power and torque to your S58-powered BMW without an ECU remap or coding. Designed for OPF and OPF-delete vehicles, the AReeve chip tuning box delivers precise multi-channel signal processing for stronger acceleration, effortless mid-range pull and improved efficiency.
Looking for a BMW M2 G87 tuning box, BMW M3 G80 G81 tuning box or BMW M4 G82 G83 tuning box that is plug-and-play, easy to fit and removable at any time? The AReeve tuning module is a proven solution for BMW G-series owners who want maximum gains with minimum hassle. We have fitted these units in-house and our customers have been delighted with the performance uplift and smooth factory-like drivability.
Watch our video review
Why choose the AReeve BMW tuning box
- BMW M2 G87, BMW M3 G80 G81 and BMW M4 G82 G83 plug-in tuning box for the S58 engine
- Made in Germany with the latest chip generation and up to 9-channel signal control
- Genuine plug-and-play piggyback tuning module with keypad control
- Reversible installation returns the car to stock in minutes
- Stage 1 for OPF models, Stage 2 for OPF-delete vehicles
- Up to 15% improved fuel efficiency, subject to driving style
- No ECU flashing, no coding, no permanent changes
Power gains and features
- Significant horsepower and torque increase on BMW G80 G81 M3, G82 G83 M4 and G87 M2
- Keypad control as standard. App control in development for Stage 2 variants
- Durable OEM-quality construction and harnessing
| BMW G80 G81 M3/M4 | Stock Power | Stage 1 | Stock Power | Stage 2 (No OPF) |
|---|---|---|---|---|
| Performance* | 510 HP | + 103 HP | 510 HP | + 121 HP |
| 375 kW | + 75 kW | 375 kW | + 89 kW | |
| Torque* | 650 Nm | + 132 Nm | 650 Nm | + 149 Nm |
| Consumption | up to -10% | up to -15% | ||
| BMW G87 M2 | Stock Power | Stage 1 | Stock Power | Stage 2 (No OPF) |
|---|---|---|---|---|
| Performance* | 472 HP | + 103 HP | 472 HP | + 121 HP |
| Torque* | 550 Nm | + 115 Nm | 550 Nm | + 149 Nm |
Technology highlights
- Auxiliary power control unit with real-time sensor tuning
- Latest chip generation with up to 5x more precise signal processing
- Up to 9 signal processing channels for accurate output management
- Selectable programs: Sport and Dynamic on Stage 1. Sport, Dynamic and Efficiency on Stage 2
- Multiple performance levels for fine tuning via the included keypad
- App control in development for Stage 2 variants
Stages explained
- Stage 1: For OPF-equipped models. Ideal daily performance upgrade with plug-and-play simplicity
- Stage 2: For OPF-delete cars, including North American or modified European vehicles. For details, contact our team
Compatibility
- BMW M2 G87 (2023+)
- BMW M3 G80 G81 and M3 Competition (2021+)
- BMW M4 G82 G83 and M4 Competition (2021+)
Pros and cons
Pros
- Quick installation with plug-and-play harness
- Adjustable performance via keypad, with app control coming to Stage 2
- Fully reversible to factory settings
Cons
- Less bespoke than a full ECU remap
- Absolute peak numbers may be lower than a custom ECU tune
Fitting and support
Professional installation is recommended. Nforcd offers expert fitting at our Warwickshire workshop. Request a quote at Sales@nforcd.com. We are an authorised UK reseller for AReeve and can advise on Stage 1 or Stage 2 suitability for your BMW M2, M3 or M4.
Installation manual
Download the AReeve S58 Installation Instructions
SEO quick hits
BMW M2 G87 tuning box. BMW M3 G80 tuning module. BMW M3 G81 Touring chip tuning. BMW M4 G82 performance box. BMW M4 G83 plug-in tuning. S58 tuning box UK. OPF Stage 1 BMW tuning. OPF-delete Stage 2 BMW tuning. Piggyback ECU for BMW G80 G81 G82 G83 G87. Made in Germany chip tuning for BMW M2 M3 M4.
Disclaimer
- Reseller notice: We are an authorised reseller of the AReeve Tuning Box. We do not manufacture this product. All warranties and product support are provided directly by AReeve.
- Performance modification and engine risk: Installing the AReeve Tuning Box modifies your vehicle’s engine performance. This may void your vehicle’s warranty and affect emissions compliance. Altering engine performance can increase the risk of engine damage. You are responsible for understanding and complying with all applicable laws and regulations.
- No liability: We are not liable for any damages or losses arising from use or installation of this product, including engine damage or vehicle malfunction.
- Professional installation recommended: While the AReeve Tuning Box is designed for easy installation, we recommend professional fitting to ensure proper setup and minimise risk.
- Use at your own risk: By purchasing and installing this product, you accept all associated risks.
*Figures are manufacturer-stated potential gains. Results vary based on vehicle condition, fuel quality and setup.