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Your New Favorite Precision Raceworks Bmw S58 & B58 Engine Plug & Play Reflex+ Installation Harness Bonkers Deal: 90% Off [94FOCjW3]

$41.99 $134.99 -69%

Precision Raceworks S58/B58 Engine Plug & Play HarnessIntroducing the Precision Raceworks S58/B58 Engine Plug & Play ReFlex+ Installation Harness, a game-changer for BMW enthusiasts looking to upgrade their vehicles with the Motiv ReFlex+ controller.

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Your New Favorite Precision Raceworks Bmw S58 & B58 Engine Plug & Play Reflex+ Installation Harness Bonkers Deal: 90% Off [94FOCjW3]

Precision Raceworks S58/B58 Engine Plug & Play Harness

Introducing the Precision Raceworks S58/B58 Engine Plug & Play ReFlex+ Installation Harness, a game-changer for BMW enthusiasts looking to upgrade their vehicles with the Motiv ReFlex+ controller. This innovative harness is certified by Motiv and designed to provide a seamless installation process without the need for any cutting, crimping, or splicing of your factory harness. Its 100% reversibility ensures that you can easily return your car to stock if desired, making it a versatile choice for all your tuning needs.

Key Features and Benefits

What sets the Precision Raceworks Harness apart from others on the market is its exceptional build quality and plug-and-play design. This harness comes with a replacement sub harness that eliminates the need for splicing into the factory wiring, saving you both time and money. The main harness is made to perfection, ensuring a secure and reliable connection. Here are some of its key features:
  • Certified by Motiv Motorsports for guaranteed compatibility and performance.
  • 100% Plug and Play for an effortless installation process, reducing downtime.
  • Compatible with a range of controllers, including MHD & MHD+, EcuTek, and BM3, to cater to various tuning preferences.
  • Assembled in an ISO 9001 Certified Facility, ensuring the highest standards of quality.
  • Made with automotive-grade wiring for durability and long-lasting performance.
  • Quick and easy installation in as little as 1 hour, making it perfect for DIY enthusiasts.
  • Easily removable without modifying the factory harness, providing flexibility for future changes.

Compatibility and Vehicle Applications

Whether you drive a BMW or a Toyota Supra, the Precision Raceworks S58/B58 Engine Plug & Play Harness is designed to work with a wide range of vehicles. This includes popular models such as the BMW 340i, 440i, 540i, 640i, 740i, 740li, 840i, Alpina B3, M140i, M2, M240i, M3, M340i, M4, M440i, X3 M, X3 M40i, X4 M, X4 M40i, X5 Sdrive40i, X5 Xdrive40i, X6 Xdrive40i, X7 Xdrive40i, and Z4 M40i, as well as the Toyota Supra. This harness is the perfect solution for those looking to enhance their vehicle's performance and driving experience.

What Our Customers Say

January 24, 2026

Absolutely no complaints!

I'm thoroughly happy with this truly fine tool.

- Robert J..

January 24, 2026

Absolutely no complaints!

A true 5-star product in every single sense.

- Skye I..

January 24, 2026

Absolutely no complaints!

The attention to detail is masterful.

- Ezra E..

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