Any of the "Big 3" would be a good choice, I personally have a HMF slip-on and plan on makin it a full system I like it very much. As far as programmers go PCV w/autotune is the best, but the PC3 works just as good but is more cost effective, but it takes alittle more to "tune" than a Dobeck style programmer which is alot cheaper and works also and is more user friendly. And U could go with the EHS lid kit or do what I did and make ur own for alot less MOOLAH! But U could not run a lid if ur ridin conditions will allow, mine dont so I had to do something different coouldnt see myself spendin that much on an airbox lid so I improvised. Hope this helps and these r just my thoughts.
I'm runnin the fmf factory 4.1 with powerbomb header, uni foam filter with ehs lid and pciii. I love it.
As mentioned already alba is developing a full exhaust system for use with the pcv and they have posted a dyno sheet showing a 9hp gain over stock... Which is impressive. Not to mention the have engine kits available.
But I love my fmf setup for the time being... The alba kit is super tempting tho...
I have the 2Bros which is really nice but found out this weekend that it's pretty loud so this winter I'm going to try and find an exhaust mechanic so I can install my old Supertrapp exhaust which performs as good as the other brands but can be adjusted for the sound, basically I need a mid pipe. Now if the ALBA system is as good as they say then I might buy their system
Nah! we have too many parks around here that monitors the sound level and we also have neighbors that will complain if the sound to loud and I do not want them to have an excuse to close our trail area which we already have so few of them. This reminds me too much of California...too many liberals