Best spark plugs to buy?

[marble]

Alright guys just wanted to know any opinions on the best spark plugs to buy heard copper tip ones are good but i don't really know much about them

It's standard inters with a td04 set up

[Idrees]

NGK Iridiums, as found here: http://www.id-workz.co.uk/index.php?main_page=product_info&cPath=3_1118_8_1185&products_id=404&zenid=00256d46f6658f31ed41b861e5ad1309

[aidanep71]

I'm using the copper core plugs at the moment and there spot on the brother also uses them in his 400hp drift car with no problems either

[maddox710]

Ngk all day long although Denso do good plugs

[AdamB]

Coppers are fine, just need replacing more often

[DevonGT]

Coppers are fine, just need replacing more often

X2, plus your be safe from the problem sometimes associated with Iridiums.

[marble]

Cheers lads!

X2, plus your be safe from the problem sometimes associated with Iridiums.

What problems can you get from iridiums?

[aidanep71]

The iridium tips have been known to come off wrecking the bores

[Idrees]

The iridium tips have been known to come off wrecking the bores

I've never heard of this before, any links?

[aidanep71]

No but but have been told by some well respected tuners both here and the uk

[DevonGT]

No but but have been told by some well respected tuners both here and the uk

Same here, not common but as been known to happen.

[Chris_GlanzaV98]

ngk heat range 7 should be fine

[hookie663]

I used to use iridium ones but have changed to copper ones

[Stu]

Iridiums are not so forgiving if they get a good dose of black soot from over fueling, that any you generally wreck them if you try and clean them. But they should be fine as long as your fueling is spot on. Maybe more suited for stock or lightly modified setups. NGK standard plugs are all I ever use (although a different heat range) for the simple reason they're cheap, easily cleaned and commonly available so I don't mind changing them out if need be