I'm wondering which spark plug would be better....Denso Iridium, NGK iridium, or other? I drive a 99 civic coupe (D16y8).

Give me an oppinion on which would be better.

 

OEM, but really you should search, there is plenty of topics like this.

 

I thought NGK's are for OEM honda standards. I've been using NGK on my d16z6 and b16a motor.

 

I thought it was the Denso Comercial version....that's why I was asking. But I'll check tommorow again when I take it out.

 

they are i just wasn't really sure of myself, thanks

 

Search, and check the surveys. But in sum up, NGK Iridium is the BEST for your vehicle.
P.S. Those 4 ground plugs are all bling appeal. They are no better than a good NGK.

 

if its stock motor... i would just run stock plugs.... or a lil bit better then stock but ... i wouldn't bother running the iridiums or bosch platinums
(platinums blow in my opinion) but if NGKs are OEM standard... i would run those.. i havn't even looked to see whats sitting in my civic... bout ta hit 100k and i have a feeling they're the original plugs....

 

im usin the NGK and i like em

 

How much of a difference do you think it'll be if I do get a NGK iridium plugs over Denso iridium though? I just need oppinion on how much of difference it would make.

 

prob. not much ....

 

i used the ngk-r

 

i have obx iridium
well no there not that good but really i don't feel a difference from my stock ones to these. I just needed new ones and these were cheap on ebay and i could tell people that there iridium, jdm y0 plugs.

 

I would go with OEM Honda which will be NGK

Buying anything else is a waste of money

The car at http://www.ericksracing.com/racecar.htm runs 9.9 Secs in the 1/4 Mile and puts out 300 WHP All Motor running stock ignition

So unless you plan to run faster then that go with OEM