im new to the ds450's:suicide:and there is something i would like to know. i have a 08 ds 450 with all recalls done on it. it has a powercore 4 slip on, no toil foam filter and prefilter, dg nerf bars, tru gel battery, hardwired fan, 1.5 risers, turner bars, and 1 hour on a freshly rebuilt...

hey guys, i have a 2011 ds 450 that i race flattrack, i have changed to a velocity air filter and im waiting for my looneytuned exhaust system to arrive but before i do too much riding with this setup i wondered if anyone has input on this setup and if it will make my bike run leaner. with the...