there is a guy on here that is running a newer style 8274. i cant recall who it was. but if i recall correctly, he showed a picture of his jl with the 8274. what i can recall is that the 8274 blocked 75% of the grill, and it was on an aftermarket bumper. sorry i cant provide you better info or who it was because i booked marked him and it was lost when the new version of the forum switched over.
as for the 8274, i love them and would get one for my jl. i would get an older style. i havent checked as much as to what bumper would fit due to a. the new 8274 is $2700 and b. i'm striking out in finding one to restore.