I have been wondering the same thing with the new expedition skid plate and the remus headers. If it is an issue I will probably just go with the arrow headers since they don't seem to be a larger diameter, but still delete the cat.
2013 BMW F800GS, Cordoba Blue, ASC, ESA, ABS
2012 BMW G650GS - 13,000 miles ***SOLD***
"If you're not mixing gas, you're not hauling ass!"
"A clean GS is a dirty shame."