What piston?

[SobeAHonda]

What type of piston would be best for my 400EX?

[SobeAHonda]

someone reply plz.......

[honda_racer199]

The type of piston you want depends on what you want to use your quad for, trail riding, racing, etc.? I've got a Wiseco 11:1 compression piston in mine, and it runs great and gives it more power over the regular compression. The only down fall is that you have to use a mixture of race gas and 93 pump gas

[jb400exxx]

get a J.E. piston. they offer different sizes and compressions.

this belongs in the "powertrain" forum.

JE or ross