new to this site but i love it, on it every evening after work. my question is about bumpers and what is the big deal about no rear bumpers fitting the 2011 rzr s. ican see not fitting the 2010, but the 2011 does not have the extension on back of cage. is there a different bolt pattern or somrthing any help would be great. and also pulled the trigger on new machine even though my brother had top end rebuilt twice because of airbox on his 2008 rzr. have they fixed airbox problems.