![Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Pulley custom designed by mountune](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 23 - Aug 28
custom designed by mountune
The ultimate force vectoring Sport Spring Upgrade for Mk8 Fiesta ST owners wanting to improve handling and aesthetics
This is programmed into the TCU (transmission control unit) by the SMARTflash app
mid and low) and valet mode (3000 RPM Limit)
typically associated with similar full-height intercoolers
Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Pulley custom designed by mountuneEcoBoost 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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