![Iridium Spark Plug Set [Mk4 Focus ST] - Fully Fitted Air Filter as a custom part](https://cdn.shopify.com/s/files/1/0367/2621/products/isp-aa_171fc1af-1c1f-4ac5-83ca-6d48becf3d27.png?v=1675767982)
Pay in 4 interest-free payments of $26.88 Learn more
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
as a custom part
mk2 Focus ST and mk3 Focus ST
Please note: ordering multiple vouchers will generate multiple discount codes
In the box:
rather than warm air from within the engine bay
Iridium Spark Plug Set [Mk4 Focus ST] - Fully Fitted Air Filter as a custom partThe mountune Iridium Spark Plug Set is pre gapped by mountune to the optimised setting. EcoBoost engines running substantially higher boost pressure, or increased levels of tuning compared to the OE power output, can experience reduced spark plug life resulting in lower engine performance, misfires and rough idle. This product includes a fixed labour charge for installation at mountune HQ in Hutton, Essex. This is a comprehensive drive in, drive out
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