HirenRS

hi guys quick question zetec silvertop head is it a tapered washer or one with a sealing crimp washer, i was on focus rs ones which have a washer but i have no way of knowing what is originally fitted to these zetec spark plug type silvertop

Versus_Creations

iTrader: (1)

You need the iridium plugs either way if turbo.
The std frs mk1 plugs are not great for power.

Matt Lewis and Msd stock them. 46£ I think last time I bought a set was a week ago.

HirenRS

Duratec I4 Eco Boost check my thread on the misfire i got its drivin me mad!

b11lkw

As Jano said, denso iridium itv27 if running big power