Iridium Spark Plug Set [Mk3 / Mk4 Focus ST] Fit at HQ:Yes allowing faster response and additional

allowing faster response and additional power

replaces the standard front pulley damper arrangement for increased reliability and providing a 36-1 crank trigger pattern

offering enhanced performance and resistance to brake fade upto 700ºC

Ford Duratec: 1

Unlike other upgrades that deliver just peak or high RPM power

Iridium Spark Plug Set [Mk3 / Mk4 Focus ST] Fit at HQ:Yes allowing faster response and additionalEcoBoost 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