C7 Corvette Coupe/Z06 Corner Sub Box VetteNuts C7 Corvette Fiberglass Corner Sub Boxes. A proven winner with over 12 years on the market and is regarded as one of the best sub boxes for the C7. The VetteNuts subwoofer boxes are available for the driver side, and drop right in... MSRP: Was: Now: $799.99 Out of stock