DINANTRONICS X Performance Tuner for BMW M240i / 340i / 440i / 540i / 640i / 740i / X3 M40i / X4 M40i 2016-2021
B58 Engine (A)
The DINANTRONICS X is Dinan’s latest inline tuning module, providing significant power gains while preserving long-term reliability and maintaining the functionality of the vehicle's on-board diagnostics. This product offers a more advanced tuning strategy compared to its entry-level counterpart, the DINANTRONICS Sport, and integrates Bluetooth technology for convenient, real-time power adjustments via mobile devices.
Key Features:
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Performance Gains:
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Up to +47 HP and +59 lb-ft of torque at the crank.
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Up to +42 HP and +54 lb-ft of torque at the wheels.
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Bluetooth Smart Connectivity: Allows easy control of power levels through a mobile app, compatible with both Android and iOS devices.
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Multiple Power Levels: Choose from seven different power settings, plus a bypass mode for maximum flexibility.
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Smooth Power Delivery: Ensures consistent and reliable performance gains for a better driving experience.
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Diagnostic Compatibility: Maintains all factory on-board diagnostics and safety features, ensuring no errors or conflicts with stock systems.
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Unaffected by Dealer Software Updates: The tuning module will continue to function even if the vehicle’s factory software is updated.
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Plug-and-Play Installation: Designed for easy installation and removal without permanent modifications to the vehicle.
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14-Day Satisfaction Guarantee: Dinan offers a trial period for you to assess the performance.
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1-Year Limited Warranty: Covers the product for defects in material and workmanship.
Fitment Note:
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G11/G12 740i Fitment: Two possible SKUs—D440-0131 or D440-0132—may apply, depending on the vehicle’s connector type. Refer to the supplied connector images to verify the correct SKU for your specific vehicle.
| Brand |
Dinan |
| Dinan Point Value |
3 |
| Emission Code |
7 |
| Factory Rated HP |
320 (375 Measured) |
| Factory Rated Torque (lb-ft) |
332 (366 Measured) |
| Labor Time (Hours) |
1 |
| Max HP Gain |
47 @ 4500 RPM |
| Max Torque (lb-ft) Gain |
59 @ 2500 RPM |
| Peak HP |
415 @ 6500 RPM |
| Peak HP Gain |
40 @ 6500 RPM |
| Peak Torque (lb-ft) |
421 @ 4500 RPM |
| Peak Torque (lb-ft) Gain |
55 @ 4500 RPM |
| Product Type |
Inline Module |
| Warranty |
Limited 1 Year Warranty |
| UPC |
813725029368 |
| Part Number |
D440-0131 |
Fitment Chart:
| Make |
Model |
Year |
BMW
|
340i
|
2016-2018
|
|
BMW |
340i xDrive |
2016-2018 |
|
BMW |
440i |
2017-2020 |
|
BMW |
440i Gran Coupe |
2017-2020 |
|
BMW |
440i xDrive |
2017-2020 |
|
BMW |
440i xDrive Gran Coupe |
2017-2020 |
|
BMW |
540i |
2017-2020 |
|
BMW |
540i xDrive |
2017-2020 |
|
BMW |
740i |
2016-2020 |
|
BMW |
740i xDrive |
2016-2020 |
|
BMW |
M240i |
2017-2021 |
|
BMW |
M240i xDrive |
2017-2021 |
|
BMW |
X3 M40i |
2018-2019 |
|
BMW |
X4 M40i |
2018-2019 |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to:
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Our experts will review your specifications and provide written confirmation for your build.
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For tracking updates or status inquiries on existing orders, please reach out via our Contact Form. Having your order number ready will allow us to provide the most efficient update.
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Secure Shipping:
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We offer FREE Ground Shipping within the 48 contiguous United States. Most in stock orders process within 48 hours. For your security, high value performance parts require a signature upon delivery to ensure they reach you safely.
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Transit Protection:
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Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
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Flexible Returns:
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Unused items in brand new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand new, untampered components, parts that have been installed, modified, or used are non returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
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Fitment Guarantee
Fitment guides and tools are helpful, but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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