Thread: ALs or NGK..

I need to change the plugs in my winter ride. AL 605's work fine in a stock GTP?

yep ^^^

i have ran both al and ngk with same results. ngk seem to last a little longer IMO

Thanks warbeaver.

Originally Posted by Warbeaver

yep ^^^

i have ran both al and ngk with same results. ngk seem to last a little longer IMO

That's because they aren't a copper core based plug.