RaceChip RS Tuning Box - 3 Series (E46) / 1998-2005

Unlock responsive performance for your BMW E46 with this plug in power module. This non Bluetooth, adjustable piggyback ECU delivers a sharp increase in usable torque and mid range pull, smoother power delivery and crisper throttle response, all while remaining simple to fit and easy to fine tune for your preferences.

Engine specific calibration and high grade electronics give you a refined, reliable upgrade that feels OEM plus. We run these units on our own cars and customer builds and the feedback is consistently excellent for driveability, power and value.

Why enthusiasts choose this adjustable power module

• Pre calibrated for your engine, then dial in your preference with the onboard rotary control offering six levels of adjustment
• Quick plug in installation in around 10 minutes with clear instructions
• OEM grade safety connectors for a clean, professional fit
• High quality components, engineered and manufactured in Germany
• Enjoy stronger acceleration or drive efficiently, with potential fuel savings of up to 15 percent with sensible driving
• Non app version for simple, reliable, set and drive operation

What this upgrade delivers

• Noticeable increase in pulling power across the rev range
• Smoother, more linear power delivery for everyday driving and spirited runs
• Refined alternative to a traditional remap with plug and play convenience

In the box

• RS series plug in module, pre configured for your vehicle
• Vehicle specific wiring loom with OEM style connectors
• Printed fitting guide and adjustment instructions

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote or advice on setup.

Compatibility

Designed for BMW 3 Series E46 models built from 1998 to 2005. Engine specific mapping supplied to suit your vehicle.

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BMW E46 performance chip, plug and play ECU module, piggyback tuning for BMW 3 Series, power upgrade box, adjustable mapping dial, remap alternative, torque increase, throttle response upgrade, German made tuning module, non Bluetooth tuning unit, fuel economy improvement, easy fit power module.