todd Sep 18th, 2007 Link
I have just learned that the JCW plugs are not, in fact, Iridium but a platinum multi-ground performance plug. I guess you could ask for or bring your own Iridium plugs in for installation at oil changes but as Gabe said there are differences of opinion on the subject of colder stage plugs in JCW and cars with reduction pullies.
The OEM recommended plug for JCW cars is the NGK BKR7EQUP.



Woofcast #186. For reals this time, not like yesterday. That’s what not having consistent internet does to a guy. But right to it, we start with a little F1 talk (more info at 













