Flow HVO
Brad at Blackwidow ATV had some full systems made by Flow. In my opinion, they are the best for design and fit. You can get a bit more power out of an original FMF Titanium, but i've had a couple of those fall apart, let alone get hit, because the can mounts to low.
Blackwidow ATV
Chance Mayfield #171
Team Money$hot
Team ILBT2
2001 Cannondale FX470
2002 Cannondale Blaze 450
WORCS Open A/Pro-Am
2009 Sponsors:
S&S Motorsports, Blackwidow ATV, HiPer Technology, Amsoil, Fasst Company, ODI Grips, Powermadd, ASV Inventions, Regina USA, Four Racing, SixSixOne, ScottUSA, Gaerne Boots, Skorbordz, ProClean1000, RB Components, GoPro