Air and Fuel› Fuel Injection Systems and Components - Electronic

Precision Raceworks

B58 Multi-Port Injection Kit

$1,199.99

SKU: 601-0175

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The BMW B58 Multi-Port Injection Kit from Precision Raceworks is a supplementary fueling solution designed for high-performance B58 engines. This kit addresses fueling limitations encountered when aiming for higher horsepower levels, especially when using upgraded turbos or E85 fuel blends. It provides supplemental fueling without straining the stock system, integrating seamlessly and remaining virtually invisible once installed.
Show original supplier description
The Precision Raceworks B58 Multi-Port Injection Kit is engineered to enhance fueling capabilities for B58 engines pushing beyond stock limitations, typically around 600rwhp. This kit allows for safe and sufficient support of greater power levels from upgraded turbos or higher ethanol blends by providing supplemental fuel. The kit features Genuine Bosch injectors that are flow-matched to within 2% or better, both statically and dynamically, by an external laboratory. These injectors offer a flow rate of 750cc at 43.5psi and over 1000cc at 72.5psi, making the system capable of supporting builds from 400whp up to 1,000whp. The fuel lines are constructed with a smooth bore PTFE inner with stainless braid and a protective nylon outer, ensuring compatibility with all fuel types, including E85. It includes all necessary hardware, such as full stainless steel components and OEM-spec manifold gaskets commonly found in BMW N54 applications. Common controllers recommended for this platform include the Split Second AIC-6 Controller and the Motiv Re|Flex Controller. An aftermarket two-piece charge pipe is also required for installation. This product is not for sale or use in the state of California on any pollution-controlled vehicle, as per the California Air Resources Board.

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

BrandPrecision Raceworks
Part Number601-0175
CategoryAir and Fuel

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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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