Originally Posted by wingracer

I agree but there is one problem. Star plugs (Werks, Sirio, etc.) are the best on the planet. Maybe the original GRP Ninja can match it but that's about it. I even run the Star made plugs in Nova onroad motors (very hard on plugs) and NOTHING lasts longer or runs better. So, if you are running a Star based motor, why not run the plug that not only fits perfectly but is also the best?

Oh I know, OD's are cheap and do run very good but what's cheaper, a $5 plug or a $9 that lasts twice as long?

Plus, not every plug and engine combo works. Try running a Nova plug in an OS. You WILL end up with a leaking head.