is this complete bu11sh1et? are these really better than my ngk plat +4 or is this another rice trend?
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1869803172

 

Just be aware that unlike platinum plugs, these are only good for 30,000 miles. So in effect, they cost twice as much as NGK platinums.

 

copper please

 

I personally would rather just use Plats instead of Iridium. I have used both Plat and Iridium on my WRX and there is no difference what so ever. I was never a fan of copper plugs.

 

Why is that? Isnt' copper plugs give you better sparks?

 

I've been told by my distributor friend that the plugs most benefit turbo/nos/high hp engines. With those engines, the need for a high performance ignition system/plugs is more important and evident if you do.

Milder engines won't see much if any increase in performance.

Just my .02

 

i just went to my local auot store for plugs. they wanted like17 bucks for the ngk platinums so i ended up gettin the coppers after i found the part number for them. is anyone using the denso or have any comments on them. they were like 12 bucks a plug but i was told they have a lifetime warranty so im not sure whick plug i wanna go with now