RaceChip RS + App Bluetooth Tuning Box for BMW 7 Series E65/E66 (2001-2009) - Plug & Play Piggyback ECU Performance Chip, Remap Alternative Power Module, Petrol & Diesel, 6-Map Smartphone Control, Stage 1 Upgrade

Unlock effortless performance for your BMW 7 Series E65 E66

Looking for a plug-in power upgrade for your 2001 to 2009 BMW 7 Series without a permanent remap? The RS with App control is a premium, smartphone-controlled piggyback ECU that delivers crisper acceleration, stronger mid‑range pull and a more responsive drive. It is engineered in Germany with vehicle-specific calibration, uses OEM-grade connectors and installs in minutes for a clean, reversible enhancement.

Why drivers choose this app-controlled power module

• Smartphone control via Bluetooth for quick changes on the go
• Six-stage calibration so you can fine-tune the driving feel to your preference
• Vehicle-specific software developed for the BMW 7 Series E65 and E66
• OEM-quality safety connectors and high-grade electronics Made in Germany
• Fast plug-in install in around 10 minutes with full instructions included
• Potential fuel economy improvement of up to 15 percent with sympathetic driving

Tailored power, your way

The RS arrives pre-calibrated for your engine and model. You can adjust the six selectable maps using the on-unit dial or through the official mobile app to suit daily commuting, motorway cruising or spirited B-road drives. Enjoy confident overtakes and smoother delivery without altering the factory ECU file.

Real-world results our customers love

We fit these units to customer 7 Series models regularly and the feedback is consistently excellent. Owners praise the sharper throttle response, improved torque feel and the convenience of switching settings from their phone. It is a simple, reliable upgrade that transforms day-to-day drivability.

Compatibility

Designed for BMW 7 Series E65 and E66 models produced from 2001 to 2009. Engine-specific optimisation ensures the module is matched to your vehicle’s configuration.

Installation and fitting support

DIY-friendly plug-and-play install with clear instructions included. Prefer professional fitting and setup? MJ Modifications in Warwickshire can handle installation and configuration for you. Request a fitting quote at info@mjmodifications.co.uk.

Ideal search terms

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