andre77

Hi guys, I was wondering if you have any opinions on which spark plugs are best? I have a 2007 rx8

Prophet

OEM NGK plugs. Even the race teams use them for the most part.

dannobre

iTrader: (3)

Stock car...stock plugs (NGK's)

You can buy the Denso's if you want They are about twice the price and do not appear to have any advantages.....

Any other application there are other plugs out there...cooler heat ranges for FI and racing application...but they are pricey

andre77

What do you guys think of the Laser Iridium ones? I see those and the non-Laser Iridium ones?

dannobre

iTrader: (3)

They are the stock plugs

monchie

Oem plugs for sure.

04boostedrx8

got to agree NGK'S

Socket7

NGK Laser Iridium plugs are OEM plugs. part numbers RE7C-L 6700 (leading plug) and RE9B-T 6701 (Trailing plug).

You're lucky I have a set sitting on my desk to reference.

Denso makes an iridium plug also. I am told it is a cooler spark, more suited to racing and sustained high RPM's then for daily driving. They are also expensive.

May as well stick with the OEMs. They'll last plenty long.

Socket7

NGK Laser Iridium plugs are OEM plugs. part numbers RE7C-L 6700 (leading plug) and RE9B-T 6701 (Trailing plug).

You're lucky I have a set sitting on my desk to reference.

Denso makes an iridium plug also. I am told it is a cooler spark, more suited to racing and sustained high RPM's then for daily driving. They are also expensive.

May as well stick with the OEMs. They'll last up to 50k miles with a strong enough set of coils. They wont' be within spec by then though, so don't wait as long as I did.