CBW-088 Supercharger Solid Isolator Supercharger solid state isolator coupler pulley Compatible With 09-15 Cadillac CTS-V 6.2L LSA Supercharged,12-15 Camaro ZL1 6.2L LSA Supercharged

The 6 pin holes are too small. the pins measure 7mm and the holes are substantially smaller. had to machine the faces of the isolator too as it was off a good bit and put too much pressure on the inside bearing. You will need a letter "J" drill bit as a 7mm puts too much bind on the bearings when assembling. If you don't have a mill a block of 300 grit sand paper to flatten and resize the face and back.