Originally Posted by Motif
Ok and i apologize, its just I believe that if it ain't a Racefit Growler (the original growler exhaust) then its just a follower.
Racefit isnt the only growler system that is available. There are many that offer growler systems, Racefit is just one of them. Check out Hotbodies' systems and products. They have a lot of racing presence in WSBK and AMA.