DINANTRONICS X - 2021-2025 BMW M3/M4 | D440-0155

The DINANTRONICS X Performance Tuner (D440-0155) is a highly engineered, Bluetooth-enabled inline tuning module for the 2021-2025 BMW M3/M4 Base Models (G8x S58 engine). The X enhances engine performance to levels the stock programming avoids, yielding maximum gains of up to +69 HP and +55 lb-ft of torque (Crank).

This is achieved through a more refined tuning strategy that connects to additional engine inputs, ensuring optimal performance without affecting long-term reliability or on-board diagnostic systems. The Bluetooth Smart functionality allows convenient access to 7 power levels and a bypass setting directly from your smartphone. The unit is a perfect plug and play alternative to a full ECU flash, providing smooth and predictable power delivery while maintaining all factory safeguards.

Features:

• Verifiable Power Gains: Delivers max gains of up to +69 HP and +55 lb-ft of torque (Crank), significantly enhancing the base model's output.

• Advanced Tuning Strategy: Connects to additional engine inputs for a more refined tuning strategy and predictable power delivery.

• Adjustability: Features Bluetooth Smart connectivity for convenient adjustment and selection of 7 power levels and a bypass setting directly from a smartphone app.

• Engine Safeguards: Smooth and predictable power delivery is ensured, and on-board diagnostics and factory safeguards are maintained.

• Installation: Designed for plug and play installation and is unaffected by dealer factory updates.

• Guarantee: Backed by a 14-day satisfaction guarantee and a 1-year limited warranty.

Product Contains:

• (1) DINANTRONICS X Tuning Module

• (1) Application-Specific Wiring Harness

Important Note: Fitment for D440-0155 is limited to the base G8x M3/M4 with the S58 engine. For a G8x M3/M4 equipped with the competition package, please use SKU D440-0156. Please refer to the recommended mapping notice below for important operating information.

Warranty DINANTRONICS X's warranty is a 1-year, product only warranty, that does not cover consequential damages or labor reimbursement. Note: Manufacturer warranty terms are subject to change.

Installation Instructions