![Iridium Spark Plug Set [Mk4 Focus ST] - Fully Fitted Air Filter Direct Replacement: Engineered to maintain](https://cdn.shopify.com/s/files/1/0367/2621/products/isp-aa_171fc1af-1c1f-4ac5-83ca-6d48becf3d27.png?v=1675767982)
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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
Direct Replacement: Engineered to maintain factory functionality
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Front ride height reduction 20mm
In the box:
as a custom part
Iridium Spark Plug Set [Mk4 Focus ST] - Fully Fitted Air Filter Direct Replacement: Engineered to maintainThe 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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