440ex spark plug

[440ex78]

i have an 02 440ex with i big brothers pipe, jetted, k&n filter, and 12:5:1 comp what should i run in it for a spark plug

[400exmatt]

DPR8Z. NGK

[jordan_m6]

i dont know why a stock plug wont work, but motosport.com sells a spark enhancer. that uses the stock plug. probly dont need it.

i dont even know of any other plug than the stock one anyways

[440ex78]

i just heard of other people using diffrent plugs when they ran a 440 thanks