These came in the box just like how they are. The part number on the caliper matches the box.
Wilwood 120-8924 - GM Metric Single Piston Caliper - 2.75" Piston
Wilwood 120-9333 - GM Metric Single Piston Caliper - 2.00" Piston
Wilwood 120-16101 - GM Metric Single Piston - 2.50" Piston - IMCA Legal
HOWE GM METRIC SINGLE PISTON BRAKE CALIPER 2.625" PISTON 1"OR 1-1/4" ROTOR IMCA
HOWE GM METRIC SINGLE PISTON BRAKE CALIPER 2.75" PISTON 1"OR 1-1/4" ROTOR IMCA
WILWOOD GM METRIC SINGLE PISTON BRAKE CALIPER 2.75" 1" ROTOR P/N# 120-8924 IMCA
