BTKUSA X3/X4 M/M40i Engine Brace

BTKUSA BMW X3M/X4M & X3/X4 M40i Billet Engine Cross Braces

MADE IN USA 🇺🇸

FITMENT NOTICE: Compatible with both the BMW X3M/X4M and X3/X4 M40i models.

The BTKUSA Billet Engine Cross Braces were designed to improve chassis rigidity while bringing a completely new level of quality and appearance to the engine bay.

Precision CNC-machined from solid aluminum billet, each brace features a lightweight, high-strength design with extensive machining to remove unnecessary material while maintaining structural integrity.

Unlike conventional stamped metal braces, our billet design offers a more refined construction engineered to reinforce the front chassis and minimize unwanted flex under load.

Every detail was carefully considered, from the machined pockets and contours to the final surface finish. The result is a functional chassis upgrade that looks just as good as it performs.

Proudly designed and manufactured in the USA.

Features

• Precision CNC-machined billet aluminum construction
• Designed to improve front chassis rigidity
• Lightweight design with strategically removed material
• Intricate machining and premium surface finish
• Direct bolt-on design utilizing factory mounting locations
• Sold as a pair (2 braces)
• Proudly made in the USA 🇺🇸

Vehicle Fitment

• BMW F97 X3M / X3M Competition
• BMW F98 X4M / X4M Competition
• BMW G01 X3 M40i
• BMW G02 X4 M40i

Built To Kill the Competition.