TRX450R HRC Header

[zahachee]

I have the hrc kit on my 2007 honda 450r. If i want the hmf muffler do i need to buy the full system, switch to my factory header, or will the slip-on fit/perform properly on my hrc header?
Thanks

[Mike/HMF]

Our slip on works well with the HRC Head pipe. It bolts right up just like the factory unit.