Spark Plugs

[ReYsTa]

For a 2003 GA-SE1

NGK Iridiums v.s. Bosch +4 Platinums?

[DMAN220]

Not Bosch I have heard only bad things about them. The stock AC Delco spark plugs are just as good as any other. You will not see any improvement with changing, unless you really have a lot of miles.

[Colin]

Go with NGK , platinum or iridium

[Gimli]

DEFINITELY go with the NGK, Bosch +2 and +4 are crap in the GM 60 degree V6.

[CookDisGASE]

Got a set of NGK copper for the S/C....works great.

[Xidion]

I use AC Delco

[GaSC/Tnfs]

DEFINITELY go with the NGK, Bosch +2 and +4 are crap in the GM 60 degree V6.


:agree:

[gtwolf]

Dont go with either. The best plug to put in to the 60 degree motors are the AC Delco platinums or rapidfires they are a better performing and better built plug and if you get the plug number from gm they will be a proper fit and heat range.
No messing around with parts designed for imports (NGK, Bosch)