Air and Fuel Fuel Injection Systems and Components - Electronic

Aquamist

HFS4-V3.1 Methanol Injection Kit

$499.99

SKU: PS108917

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Aquamist HFS4-V3.1 HFS-4 Methanol Injection Kit is an authentic OEM part designed to enhance performance and efficiency. This methanol injection system is essential for controlling engine temperatures, improving combustion, and increasing overall power output. It directly fits select BMW M5 models and may be compatible with various performance-oriented applications. The HFS4 unit integrates seamlessly into the engine management system, utilizing OEM part number 7845046 for precise fitment. This component is critical in resolving common issues such as overheating or knocking, often encountered in high-performance vehicles. Engineered for durability and reliability, the HFS-4 injection kit delivers consistent performance, ensuring your vehicle maintains its factory specifications.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAquamist
Part NumberPS108917
CategoryAir and Fuel

Buy with Confidence

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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