Anybody using them in Merc 525's???? Any performance help? ETC??? Also, if so what plug # or stock # R the plugs?? Have got conflicting #'s from ngk sight & ngk tech???????

Cum on people, fess up!!!!!! W/ all the 525's out there, somebody must have some info!!! WTF am I pay'n U people 4 ??????????

why are you so dead set on NGK?

Stecz told him they work great in lawnmowers.

Just look'n at these " high tech" plugs! Give sump'n dif a try!!! & hop'n 2 get 5 MPH more!!!!!!!!!!!!!!!!!!!!!!!

a spark plug will just make the burning more efficient and the best ones are always brand new plugs. 5mph off spark plugs huh? Thats like the kids driving the 4cyl thinking a fart can exhaust is gonna make them out race vetts

the 5 is just a joke!!! But I know a couple gassers that could do the fartz 4 mph pretty good!

Wrink you better put them in that RC boat so you won't be getting a little A$$ whoop'n!!! hahaha

Looking forward to coming up there and turns out now i might actually head up the Sat or Sun after the july 4th (which is on Fri) and stay up there the entire week!

Cool man, Look 4ward 2 it!!!

ngk part # can you keep a secret?