when I put my front BK016 bar in I didnt have to drill anything had 18mm nuts on the end links and I got the stock bar out on jack stands pretty easily without lifting the motor. getting the new bar in took a while. Had to bend the ps line a little by hand and then I got the bar caught on the pass side rear stud for the sway bar bushing. After a while i got pissed and just smacked the bar with a rubber mallet from under it on the pass side. It popped off the stud and fell in.
2012 2SS/RS M6 SIM, Painted Carbon Flash rally stripes, Elite CC, 3.91 gears, New Era ported TB, OTR, and Dyno Tune, Heritage Grill, Pat G Cam Motion cam, 25%Fluidampr, Melling 296 Oil pump, Katech C5-R chain, Cloyes LS2 HD tensioner, PAC 1205x springs and Comp Cams trunions. ARH 1 7/8" LT headers w/cats, TWM full Shifter, BMR sways, trailing arms, toe rods, delrin cradle bushings, BK039 rear control bushings, front bushings. Solo Mach-XL exhaust