I'm taking off the FMF Apex muffler and putting the stock furnace back on to see if there is a difference...who knows - stranger things have happened...maybe a lack of back pressure is creating a lean mixture and fouling things once it runs for a bit.
KTM 1190 ADV - pink letters covered with carbon now :)
2005 Ducati 999R - bucket list must-have
And how can this be? For he is the Kwisatz Haderach!