Originally Posted by
bushyar15
Hmmmm, I don't buy that....
No offense, but I don't believe that or else GRP would make a point that you can ONLY use GRP plugs and thats not the case. They recommend their plugs but make no mention that its mandatory....
I think if an different brand of plug "deforms" the button head or threads, they would definitely make it clear that was the case. How many engines would be ruined this way...
With my ninja, I usually run the OS plugs, but have used mugen turbo plugs, and O'Donnell turbo plugs after an OS without issue...
I don't think any company says you had to run their plugs, they expect you to. If you owned a Novarossi engine and screwed in the OS Turbo plug, you would see what I'm talking about.