2005-2013 Corvette Extreme+ Brake System Front 4301115S radiators 646" Max Vacuum 20 in

646" Max Vacuum 20 in Hg Max Working PSI 250 PSI Maximum Continuous Length 30 Feet Min

And if you still need convincing

This is considered normal and is not a cosmetic defect

6L V8 1975-1976 Chevrolet Impala Custom 454/7

2005-2013 Corvette Extreme+ Brake System Front 4301115S radiators 646" Max Vacuum 20 inFits 2005 13 Chevy Corvette (C6) Features: 1 Piece Monoblock, 6 Piston, 6S Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced 2618 Aluminum Forging Powder Coated Finish Stainless Steel Pistons, Abutments and Noise Suppression Clips Staggered Pistons to Minimize Uneven Pad Wear Dual Seals, Dust Weather & Pressure 2 Piece Slot, Drilled, Zinc Plate Rotor w Billet Aluminum Hat Specs: Applications Chevy Corvette 05 13 Axle Front Brand Baer