Quote:
Originally Posted by TrackClub
Yes, SS 1LE doesnt come with vented pistons, but ZL1 does from a factory.
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No, the ZL1 calipers do not. The caliper body up front is the same as the V3 CTS-V (J6H) and J57 CCB calipers (C6 / C7 and Gen5 Z28).
My J6H ZL1 1LE front calipers have the J57 vented pistons in them - put in there by yours truly. As FYI, J57 rear calipers for the above vehicles do not have vented pistons.