550cc - Ford Focus MK2 ST/RS

Name: 550cc - Ford Focus MK2 ST/RS
Brand: DeatschWerks
SKU: 17U-00-0550-5
Price: 335.07 USD
Availability: InStock
Rating: 4.6 (5 reviews)

550cc - Ford Focus MK2 ST/RS - Main image

$335.07 ~~$459~~ In stock

Category: Fuel Injector

This DeatschWerks fuel injector kit is designed for the Ford Focus MK2 ST/RS from 2005 to 2010. It includes a set of five 550cc injectors for a complete replacement.

Set of five 550 cc/min fuel injectors
Vehicle-specific application for Ford Focus MK2 ST/RS 05-10
Sold under the DeatschWerks brand
Part number 17U-00-0550-5

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Adam T. ★★★★★ Oct 21, 2026

Dropped these into my MK2 ST and they fit perfectly, car idles smoother than with the old clogged ones. The 550cc flow seems spot-on for my tune.

Hazel W. ★★★★★ Oct 20, 2026

Five injectors in the box, all with the same 550cc rating, so it was a straightforward swap on my MK2 ST. The car idles clean and pulls hard without a hiccup, and the kit being a complete set saved me from hunting down a missing one. Worth every penny for the peace of mind alone.

Jason K. ★★★★★ Oct 19, 2026

I noticed a solid improvement in throttle response right after swapping to these 550cc injectors. The five-piece set made for a clean, complete replacement without any guesswork.