These guys have done a great job with the C7.
LA-based auto fabricator and designer, Ivan Tampi, recently established a new company that showcased its maiden project based on a C7 Stingray at SEMA a couple of months ago. Dubbed the XIK (pronounced "sick"), the widebody kit has since down the rounds at car meets and has received rave reviews. Limited to just 100 units, each model comes with a numbered certificate. The made-to-order 14-piece full replacement kit, including new bumpers, side skirts, diffuser and rear spoiler, is made from colored and exposed carbon fiber and polyurethane.
If you like what you see (surely it's preferable to this), the kit comes in at $14,999 and orders are now being taken with first deliveries happening this month. And if you're interested in the wheels, these are by Kompression, staggered 20/21 inches front/rear, and are also for sale.