MK3 Focus ST ST250 2.0 Ecoboost injector cleaning and filter upgrade


The 2.0 Ecoboost is a Direct Injection engine, meaning that the fuel injectors spray directly into the combustion chamber. Direct injectors have a much shorter window of time during the combustion cycle to inject this fuel, therefore run at a much higher pressure compared to port injectors in order to inject enough fuel and atomise the fuel more efficiently.

Now while this brings many benefits to engine efficiency, due to the injectors now being inside the combustion chamber it does present an issue with carbon build up on the injectors. This can offset spray patterns or even cause not enough fuel to be delivered to 1 or multiple cylinders. 

The 2.0 Ecoboost injectors also use a paper filter, you can see in the image that this has deteriorated causing dangerously poor flow.

This service is for a set of 4 Ecoboost injectors flow and leak testing with report + fitting of uprated mesh filter baskets & new graphite seals. You must send us your injectors after purchase and we aim to turn these around in 3 days + delivery time.

We also have brand new Ecoboost injectors already tested & fitted with uprated baskets available here



Our policy lasts 14 days from the date of delivery. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging and suitable for resale. Return postages costs are at the expense of the buyer and we recommend using a tracked and insured service.

All returns will be subject to a 10% restocking fee, outbound postage fees will also be deducted from the refunded amount. The handling fee is to cover costs incurred through processing credit card payments and postage and packaging costs.

Several types of goods are exempt from being returned.

Once a special, non-stock item has been processed we are unable to offer a refund.

To complete your return, please contact us as soon as possible.

Any items that return to us damaged or not 'as new' condition may be subject to a partial refund.


Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Sale and group buy items (if applicable)
Only regular priced items may be refunded, unfortunately sale and group buy items cannot be refunded.

Damaged or defective goods
If goods arrive damaged or incomplete Wayside Performance must be notified within 24hours of delivery.

If we have wrongly supplied parts we will at first try to supply the correct parts to you. If the correct products are not available we will reimburse the full purchase price if within 14 days. Wayside Performance is not responsible for any labour charges incurred during the fitment, or removal of suspected incorrect ordered or supplied parts.

Generally warranties are with the product manufacturer and not with Wayside Performance, therefore the product manufacturer should be the first point of contact. If you are unable to get in touch with the manufacturer please feel free to contact us and we will do all we can to assist.

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MK3 Focus ST ST250 2.0 Ecoboost injector cleaning and filter upgrade
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