spark plug

[quad_racer_17]

is there any different sparkplugs that work better than stock or should i buy a stock one

[xtreme 250x]

This is only my opinion and probable not a good one but here it is anyway. You can go spend hundreds of dollars in spark plugs and try each and every one and never feel the difference. The only way you will feel a difference is to increase spark output and even then you won't feel a difference. You might get longer life out of one or another but to increase power I am not sure you will feel the increase. Like I said not a great opinion but thats mine. Buy a good quality spark plug not the most expensive not the cheapest the middle of the pack with a reputable name.