Products > Ford Focus ST225 (mk2) > Fueling > Focus RS MK2 440cc multi hole injectors

Focus RS MK2 440cc multi hole injectors

Focus RS MK2 440cc multi hole injectors

£325.00 Inc. VAT Was £395.00 Inc. VAT

Part of the Stage 4 package, you can buy the new RS Mk2 Injectors upgrade separately here. Also recommended for Stage 3 Tuning packages.

Focus RS MK2 440cc multi hole injectors

These are the same Bosch injectors as found in the Focus RS MK2 and are a direct replacement for the standard 330cc Focus ST injectors. There is no need to re-calibrate your ecu to accept these injectors as all of our Dreamscience maps will run these injectors perfectly. These injectors are used as part of our stage 4 kit as from testing the standard injectors start to become inefficient at around 316Bhp +/- depending on temperature, commanded lambda, barometric pressure etc. These new injectors are a MUST for the new Stage 4 kit and also make a good addition to stage 1, 2 and 3 cars as you will notice an increase in performance in the mid range and at high rpm which is complimented with a smoother power delivery. (In all cases any injector bigger than 440cc will not run correctly and are unnecessary leading to ecu recalibration) At 350 real Bhp we still hold 11.5 to 1 AFR with the 440cc injector so any bigger is unnecessary and will not run as well.


We also offer a full fitting service at our dreamscience HQ in Hull, UK, priced at £50. This must be selected with your order, and we will then contact you to arrange a suitable time. Please note if you require this service then you must choose collection as your delivery method when going through the checkout or you"ll still be charged for delivery!

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£325.00 Inc. VAT

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