Manifold/header/muffler/tail Pipe problems of the 2011 Chevrolet Corvette

Tl the contact owns a 2011 Chevrolet Corvette. The contact stated that while driving at approximately 35 mph, there was fire under the hood and all warning lights on the instrumental panel illuminated. The contact mentioned the fire extinguished independently, once the vehicle was turned off. The vehicle was towed to jeff wyler dixie Chevrolet (5340 dixie hwy, louisville, ky 40216) where it was diagnosed with a misfire cylinder number 6 and fractured valve spring needed to be repaired. The vehicle was repaired however, the contact noticed that the cover to go over the spring was burnt. The manufacturer was notified of the failure. The contact mentioned the failure recurred three times. The vehicle was taken back to the dealer where it was diagnosed that the intake gasket underneath the manifold needed to be replaced. The vehicle was repaired but the failure persisted. The vehicle was taken once again to the dealer where it was diagnosed this time with a manifold, the coil spark cord and misfire cylinder 5 and 6 needed to be replaced. The vehicle was repaired. The approximate failure mileage 37,015.