Best Service Parts

[Rossostopher]

I am looking to service my 1.6 Ti-VCT Focus shortly and want to know which parts people think are best.

The only ones I think can have any difference in them are; air filter, oil and spark plugs.

I am looking for a panel air filter as an induction kit on this car will kill it. I was looking at Pipercross and K & N.

As for oil I don't have a clue so any ideas are welcome.

Spark plugs I was looking at iridium ones but heard they may knacker the coil pack for some reason.

Any one have views on this?

[alexp999]

I have used K & N before.

They seem to generally be the more accepted 3rd party air filter manufacturer.

I think the biggest bonus is their warranty and the fact they will defend you against manufacturers trying to void your warranty by using their parts.

[TDCiST]

for fuel and oil filters try to use ford ones... ive heard of many horror stories of the diesels not starting correctly using pattern parts.