The HMF has a smoother power output. It has a 1/2 hp advantage right around 6500 rpms, but it gives up 2hp on the top end to the Big Gun. The new design, that R&S is working on with them, is suppose to be a killer. It will be a full system, headpipe and all.

 

I heard dyno with the big gun exhaust was made with racing gas...so there is 3 more hp...I saw this somewhere on the web dont remember where plus the guy at trinity told me

 

No, they only gained about 1/3rd of a horsepower with the race gas.

 

The race gas saga continues. I was thinking about another post about the timing issue and using race gas. If that all you run you could write a custom map for it and run like he11. Than have the map switch to pump gas and whalla, you don't have to spend all that money for the gas except when you race. Do you love this bike now or what.

Smitty