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
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340i
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2016-2018
|
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BMW |
340i xDrive |
2016-2018 |
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BMW |
440i |
2017-2020 |
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BMW |
440i Gran Coupe |
2017-2020 |
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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.
The AutoHouse Advantage: Global sourcing power paired with specialized expertise. We utilize an expansive supply network of over 600,000 SKUs to deliver world-class components with an enthusiast’s precision.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Project Incentives:
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
• AH25 — $25 OFF $500+ | • AH60 — $60 OFF $1000+
• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Authorized Retailer:
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Every product we sell carries its full original manufacturer’s warranty. While warranties are serviced by the brands themselves, we act as your advocate—handling technical details to ensure your claim is processed fairly.
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Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
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Secure Logistics:
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High-value performance parts deserve high-level security. We utilize fully encrypted, PCI-compliant checkout and premium, insured carriers to ensure your investment is protected from the moment you click 'Order' until it’s in your hands.
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Building something big? If you’re planning a full overhaul or need a custom quote, reach out to our team via our
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Direct Consultation:
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For sales inquiries, help applying Project Incentives, or immediate assistance with a new order:
(828) 588-5888
Monday – Friday | 9am – 5pm EST
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Technical & Fitment:
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To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to:
support@autohousesupply.com
Our experts will review your specifications and provide written confirmation for your build.
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Order Inquiries:
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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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Global Inquiries:
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We proudly support builds across the US, Canada, Mexico, and worldwide. For international shipping quotes or oversized freight logistics, please contact us via the email link above.
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Need an immediate answer? Our
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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
Contact Form before shipping any items back so we can provide you with an RMA number.
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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Questions? Send us your
Year, Make, and Model via our
Contact Form and we’ll get you a definitive answer so you can buy with confidence.
