GHT R DUN silencer or excell header?

[nytro rider]

I was wondering which would give me just an overall better performance and i would be using my stock silencer with the excell header.

 

[theCATman]

Headers.

 

[IAVECTORGT]

Header! I just ordered the Hauck trail silencer yesterday and I'm curious to see how it sounds and how the sled performs. Hauck claims 3-6 hp gain when I talked to them. Their website states 6....