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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Brabus

Engine Control Module Upgrade

Name: Engine Control Module Upgrade
Brand: Brabus
SKU: PowerXtra B40S-800

$1,692.65

SKU: PowerXtra B40S-800

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Brabus PowerXtra B40S-800 is an engine control module upgrade designed to significantly enhance performance.

This kit includes two BRABUS special turbochargers with larger compressor units and modified core assemblies, along with a BRABUS PowerXtra control module for the engine control unit. It is a plug-and-play module requiring no further adaptations or adjustments after installation.

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The Brabus PowerXtra B40S-800 is a high-performance engine upgrade package designed to unlock the full potential of compatible Mercedes-AMG vehicles. This kit is based on the AMG GT63 S and the G-Class W 463A AMG G 63, transforming their power output and driving dynamics. The core of the PowerXtra B40S-800 kit includes two BRABUS special turbochargers, each featuring a larger compressor unit with a 52 mm diameter and modified core assemblies equipped with reinforced axial bearings. Complementing the hardware upgrade is a dedicated BRABUS PowerXtra control module, which seamlessly integrates with the vehicle's engine control unit for optimized performance. According to the provided installation guide, the PowerXtra system is ready to run immediately after installation, with no further adaptations or adjustments required. This upgrade delivers a substantial increase in power, raising the rated output from the stock 430 kW/585 hp to an impressive 588 kW/800 hp. Peak torque also sees a significant jump, from the stock 850 Nm to 1,000 Nm. These enhancements translate into improved acceleration, with the 0-100 km/h time reduced from 4.5 seconds to 4.1 seconds. The top speed can also be optionally increased to either 220 km/h or 240 km/h, compared to the stock 220 km/h.

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

Brand	Brabus
Part Number	PowerXtra B40S-800
Category	Ignitions 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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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