DeatschWerks Fuel Injectors

2005–2010 Ford Focus MK2 ST / RS 550cc Injectors - Set of 5

Part #: 17U-00-0550-5

Overview

The DeatschWerks Ford Focus MK2 ST/RS 550cc Injectors are high-performance fuel injectors designed to enhance the fueling capabilities of your vehicle. Engineered for enthusiasts who seek reliable, precise fuel delivery, these injectors are ideal for tuning applications, performance upgrades, or replacing worn-out factory units. With a focus on quality and consistency, DeatschWerks injectors help support increased horsepower and torque, ensuring your Focus performs at its best under spirited driving conditions.

Whether you're upgrading for increased power, improving throttle response, or optimizing fuel efficiency, these injectors provide a direct drop-in solution that maintains OEM-like reliability while delivering the flow rates needed for high-performance setups. Perfect for street, track, or modified applications, they are built to meet the demands of modern turbocharged engines.

Key Features

DeatschWerks' 550cc fuel injectors for the Ford Focus MK2 ST/RS feature advanced engineering and high-quality materials to ensure durability and precise fuel metering. Constructed with a robust coil and a high-flow internal design, these injectors provide consistent spray patterns and excellent atomization. The open-flow design minimizes pressure drop and supports optimal fuel delivery, helping your engine achieve its full potential.

• High-quality, corrosion-resistant materials ensure long-term durability and reliability.
• Drop-in fitment designed specifically for the 2005–2010 Ford Focus MK2 ST and RS models.
• Optimized spray pattern for efficient combustion and improved throttle response.
• Supports tuning and performance modifications by providing increased fuel flow capacity.
• Manufactured with precision to meet or exceed OEM standards for quality and consistency.
• Ideal for turbocharged engines requiring higher fuel delivery for increased power output.
• Compatible with various fuel types and fuels with high ethanol content.
• Backed by DeatschWerks' reputation for high-performance fuel system components.

Construction & Design

These fuel injectors feature a precision-machined body crafted from durable materials that resist corrosion and wear. The internal components are designed for optimal flow and spray pattern consistency, ensuring reliable performance over time. The injectors are equipped with a high-quality solenoid coil that provides quick response times and stable operation. Their compact, drop-in design allows for straightforward installation without modifications, making them a convenient upgrade for your Focus.

Installation & Fitment

The DeatschWerks 550cc injectors are designed for easy installation as direct replacements for the factory units on the 2005–2010 Ford Focus MK2 ST and RS models. No additional modifications, cutting, or tuning are required for basic installation, though tuning is recommended to optimize fuel maps for performance applications. Proper installation ensures optimal spray pattern and fuel delivery, contributing to the overall performance and reliability of your vehicle.

• Plug-and-play installation with OEM connectors.
• No cutting or drilling required.
• Compatible with stock and upgraded fuel systems.

What's Included

• Set of 5 high-performance fuel injectors
• Installation instructions

Ideal For

• Performance enthusiasts upgrading their Ford Focus MK2 ST/RS
• Turbocharged engine builds requiring higher fuel flow
• Replacing worn or faulty factory injectors
• Custom tuning and remapping projects