THE R2 IS SHORTER AND ANGLED MORE AGGRESSIVELY THAN THE R1. IT COMES STANDARD WITH A TINTED LEXAN CNETER WHICH IS SCREWED ON TO THE BACK AND CAN BE REMOVED. WING WILL BOLT ON TO THE OEM HOLES ON THE TAILGATES. 
 
ALL WINGS ARE CNC WATER JET CUT FROM ALUMINUM FOR PERFECT FIT EVERY TIME. THE LEXAN IS A BOLT ON PIECE AND USES SMALL SCREWS TO HOLD IT IN PLACE. IT IS ALSO ADJUSTABLE. MEANING YOU CAN RAISE THE LEXAN UP TO 1/4" PAST THE EDGE OF THE WING, GIVING THE WING AN EXTRA LIP.