i have a 99 cobra that has a aftermarket exhaust on it..the mufflers are kinda square built like flowmasters but have no writing on them..all the pipes are shiny like stainless and then it has swelled out tips at the end that are about 10 inches long and there is no weld marks where the tips are..it sounds good .....have any idea what this is..my friend has a flowmaster cat back on his and it is different than mine.