The contact owns a 2018 Ram 1500. The contact stated that while driving at various speeds, there was an abnormal ticking sound coming from the vehicle. There was no warning light illuminated. The vehicle was taken to two separate independent mechanics who both stated that the exhaust manifold was warped due to a fractured bolt. The contact was informed that the exhaust manifold needed to be replaced. The manufacturer was notified of the failure and was informed that there were no recalls on the vehicle. The vehicle was not repaired. The failure mileage was approximately 77,000.