Ignitions and Electrical› Computers, Chips, Modules and Programmers

Bavarian Tuning Solutions

025 Tuned ECU/DME

$199.00

SKU: 025

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Bavarian Tuning Solutions 025 is a tuned ECU/DME that releases more power by re-programming the fuel mixture and ignition timing. This software raises the rev-limit to provide a broader power band for each gear, making extra power available at all times. It is a plug-and-play unit that includes EWS immobilizer delete functionality.
Show original supplier description
The Bavarian Tuning Solutions 025 is a tuned SiEMENS MS45.1 ECU/DME designed to unlock increased performance in specific BMW models. By re-programming the fuel mixture and ignition timing, this unit releases more power, providing a noticeable increase in horsepower and torque. The software also raises the factory rev-limit from 6500 RPM to a safer 7000 RPM, creating a broader power band across all gears and enhancing the overall driving experience. This tuned ECU/DME offers "plug and play" installation, meaning no further actions are required for it to function. It also features EWS (Engine Immobilizer) delete functionality. The unit is compatible with the m54b30 Double Vanos engine and is available for both manual and automatic transmissions. It requires the use of RON95 fuel or higher. The product comes with a 1-year warranty. Specific fitment for this tuned ECU/DME includes the BMW E46 330i/330Ci, E60 530i, and X3 E83 3.0i models manufactured between 2002 and 2005. The part supersedes numerous BMW part numbers, including 12141429703, 12147533652, 12147541336, and many others listed on the product page. Any other tuning modifications or changes can be made available upon request. Installation is described as a simple operation, with video guides provided for those who wish to perform the installation themselves.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBavarian Tuning Solutions
Part Number025
CategoryIgnitions and Electrical

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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