Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Graphics Uprated spring poundage (15%)

Uprated spring poundage (15%)

If outside the UK

either with the supplied air feed hose and aluminium joiner to neatly connect with a mountune induction kit lower shanon hose (which provides an enhanced cold air feed from the front of the car) or alternatively

the optimised calibration boosts peak power to between 250-260PS and makes it equally rewarding to rev

complete with debossed mountune logo and etched key hoop - keyring's really don't come much more luxurious

Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5] Graphics Uprated spring poundage (15%)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. 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