[wulbert]

Whilst I was looking for a new 9000 recently one of the vendors said that you should always use NGK plugs, never anything else.

I had just spent £25 on a set of Champion plugs from Halfords ( listed as being suitable for DI cars) which went into my now dead, 2.0lpt. I was going to fit them in my new 2.3 LPt but am wary of doing so if they are not up to the job.
Any one got any opinions? Why are NGK meant to be so good? The Champion ones only have one electrode but were pretty premium priced in my view

 

[DaveS]

Have a look at this thread.
The general consensus is that NGK MUST be used - the DI system was designed around them. Anything else may damage the DI cassette (£170

)

 

[mark e]

The simple answer is only fit NGK BCPR7ES-11.

There are other options, but this is the guaranteed one