slip on pipe- assembly

[400exrider26]

when you buy a slip on like say hmf and you want to use the stock header on a 400ex is there anything special you have to do to it to get the pipe on right without any leaks?? gaskets, etc..?

[sickmojave]

HMF doesn't use a gasket between the stock head pipe and the slip~on. Mine has never leaked. ;)

[400exrider26]

anything else i have to do?

[DeerNuts]

There is a reason its called a slip-on. Just slide er on there and bolt it up! git er dun man.