Iritops Vs Iridium Ix???

[ricknismo]

what makes iritops worth so much more that iridiums in the NGK range.

I have a mate in the business and found 1.1mm BCPR6EIX-11 worth about $20 retail and IRITOP 7 (5601) worth about $40 retail...

Fair enough the gap is 1.1mm versus 0.8mm but that ain't worth $120 a set more.

Told iritops are for race application...but what does that mean???

Anyone know the diff?

[doubled]

was shopping around for plugs and thought that the .7 would be the bizz. until i found out that they foul up if they are used on arround town applications, not RACE cars, also i "think" their life span is only 5000km aproxx

PLEASE CORRECT ME IF IM WRONG!!!

[GTRgeoff]

Can't help on the Iritops but I have to say that the specialised plugs cost a lot and don't do justice to a highly tuned engine, so I stick with coppers in the 7 heat range and pay $20 a set. Also the fact that the special coating can easily be breached by regapping to obtain a 0.7 - 0.8mm gap makes them worthless to me. I simply check the gap before each race meeting and it takes about 20 min with the cover left off. GTR is of course a lot easier to service the plugs in standard config.