![Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Graphics the optimised calibration boosts peak](https://cdn.shopify.com/s/files/1/0367/2621/files/2709-ISP-AA_2048x_959bcad4-0e8e-45f3-9aaf-d4cdabec3d5e.webp?v=1748700985)
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
the optimised calibration boosts peak power to between 250-260PS and makes it equally rewarding to rev
Regular fit or Oversize fit with classic crew neck
complete with debossed mountune logo and etched key hoop - keyring's really don't come much more luxurious
Fitting time: 1 hr plus
Choose between an aluminium or our stunning carbon fibre cold air feed - both utilise the cold air being fed from the factory cross-car air duct
Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Graphics the optimised calibration boosts peakEcoBoost 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. Increased wear is typically seen in the form of increased spark plug gap and degradation of the electrode. Using spark plugs that are optimised for increased power ensures maximum performance. Extensive in market validation at
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