400ex exhaust help

[Jared69x]

I don't know what exhaust is quiet and give you power, I'm thinking about a hmf with a quiet core but i don't know.

[rob_990]

thats what ive got cause my neighbor was complaining and its still pretty loud its just not as deep and it made it a little quiter,im guessing its probably right on the edge of being illegal in michigan

[ae13291]

i would say my WB e series is pretty quiet