400ex powerups?

:banghead: i just bought a new 2005 400ex, i cant seem to make a decision on the type, or manufacturer of exhaust pipe..its my first honda, bought for trail riding, needless to say im looking for lots of torque. also what else can i do without voiding my warranty? thnks.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now