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2709-ISP-AA

Iridium Spark Plug Set [Mk8 Fiesta ST | Puma ST | Focus 1.5 | Kuga 1.5]

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 extreme boost / cylinder pressures was undertaken to ensure optimal performance was achieved, whilst also making sure reliability and drivability wasn't compromised in colder ambients.

Each set is supplied pre-gapped by mountune to optimise the setting and allow for easier end-user installation.

The NGK LTR71X-II is one step colder than the original spark plug.

Applications:

  • Fiesta ST 2017-current
  • Puma ST 2020-current
  • Focus 1.5 (3-cylinder, 150PS / 180PS) 2018-current
  • Kuga 1.5 (3-cylinder, 150PS) 2019-current

Features:

  • Smoother acceleration
  • Perfect for high boost applications
  • Supplied pre-gapped by mountune

Please note: Supplied in a pack of 3 plugs.

Customer Reviews
4.9 Based on 14 Reviews
5 ★
93% 
13
4 ★
7% 
1
3 ★
0% 
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2 ★
0% 
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1 ★
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Filter Reviews:
    GC
    10/09/2022
    George C.
    United Kingdom United Kingdom

    Good item

    Only recently installed. Fit well, gap is great, feels alittle more responsive and a stronger start uo

    AR
    19/08/2022
    Andrew R.
    United Kingdom United Kingdom

    Iridium plugs

    This is the second set of these plugs now. They do the job, a must have when running a map

    NK
    13/08/2022
    Nick K.
    Greece Greece

    Sure you want if you run your car

    Sure you want if you run your car and high temperature .is for your engine safety