Petrie1997

Do you guys know which is better? What are the benefits of each? I always thought that the iridium plugs were the best, but today I heard from some people that the bosch platinums were even better.

Thanks,
Peter.

wakkolio

Platinums suck.

AzNTL

i just ordered the Denso Iridium 20s... they should be comin on Friday

VTEC

I got bosch platinums +4 on my TL...they give u better low ends and save u abit gas.

Petrie1997

VTEC,
So are the Bosch's more low-end and more fuel efficient than the Denso's? What are you basing this info on? Just want to get all the facts before I shell out 80 or more bucks on spark plugs.

Thanks,
Peter.

Pin0yDrag0n56

I thought the Bosch's were for European and Denso's for Japanese

xjp122x

Just wondering, what kind of performance gains do spark plugs provide? I know this is a reeeally basic question, but I'm still a little new to this.

KJ32

I tend to like sticking with NGK. I know the other two brands have 4 platinum tips. It will probably be better when it gets old, comparing to regular plug under the same condition, since it has four tips to wear down instead of one. Also I believe the voltage being sent to it stays the same since the alternator output is constant. So it should make a difference in performance count. Right? I want to upgrade the alternator to the TL-S one since it has higher output, but I am not sure it will mess up something else. Anyone knows about it?