DINANTRONICS X Performance Tuner for BMW 540i 2021-2022
B48 Engine (D)
The DINANTRONICS X is the latest and most advanced tuning module from Dinan, designed to elevate engine performance beyond stock limitations while ensuring long-term reliability and compatibility with onboard diagnostic systems. This module represents a significant evolution from its predecessor, offering more refined power management and additional inputs for enhanced output.
Key Features:
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Power Gains:
- Maximum increases of +47 HP and +59 lb-ft torque (crank); +42 HP and +54 lb-ft torque (wheel).
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Bluetooth Smart Technology:
- Compatible with Android and iOS, allowing users to adjust power levels directly from their smartphones through an easy-to-use app.
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7 Adjustable Power Levels + Bypass Mode:
- Users can choose from 7 power settings or select a bypass mode to revert the car to stock performance instantly.
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Refined Tuning Strategy:
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DINANTRONICS X connects to more inputs and uses a more advanced tuning strategy than its entry-level sibling, DINANTRONICS SPORT, resulting in greater power and smoother power delivery.
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Factory Diagnostics & Safeguards Maintained:
- This module ensures that all onboard diagnostics and factory safety features are maintained, and is unaffected by dealer software updates, keeping the vehicle running reliably.
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Plug-and-Play Installation:
- Installation is straightforward and requires no permanent modifications, making it an ideal solution for those who prefer not to reflash their ECU.
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14-Day Satisfaction Guarantee and 1-Year Limited Warranty:
- Comes with a 14-day satisfaction guarantee and is backed by a 1-year limited warranty, offering peace of mind for your performance investment.
Additional Notes:
- Refer to the recommended mapping notice for optimal operating information to ensure safe and effective use of the system.
| 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 |
810065214461 |
| Part Number |
D440-0159 |
Fitment Chart:
| Make |
Model |
Year |
BMW
|
540i
|
2021-2022
|
|
BMW |
540i xDrive |
2021-2022 |
⚠️ 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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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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Direct Consultation:
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(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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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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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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Questions? Send us your
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