The BMW 4.4L (5.0) Twin Turbo motor is BMW's newest powerhouse. From the factory this engine produces 400 HP and 450 Ft Lbs of torque. Through careful engineering and countless hours of R&D Active Autowerke is able to raise the power levels by 40 rear wheel horsepower and 40 ft lbs of torque. This power increase has been obtained by increasing the boost levels and modifying the fuel and ignition tables. All this has been in done while maintaining the factory characteristics that BMW engineered this engine/Ecu combination to work with. The Active Autowerke upgraded software is designed to operate with gasoline that has an average octane rating with full emissions to create a clean burning combustion with good AFR's all within factory specifications. Looking to bring your 4.4 Twin Turbo motor to the next level? This upgrade is a must for the BMW enthusiast lookin for over 460 HP and a powerful 500 ft lbs of torque.
Features:
- 40 Rwhp and 40 Ft lbs of torque Increases
- Higher torque over factory settings through RPM range
- Recalibrated settings for a smoother and more responsive part throttle transition
- Recalibrated settings for a smoother and more responsive power delivery
- Ability to tune all DME's
- Top speed limiter removed
- Tune available for 91 or 93 octane fuel.
- Tune also available for Euro Spec & Other International Octane Ratings
Specifications:
Part Type:SoftwareFitment Spec:Vehicle Specific
⚠️ 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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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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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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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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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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