I have the dynomax ultra flo three inch catback on my car and was wondering what flowmaster delta 40's would sound like compared to the ultra flos. Looking at taking the ultra flos out to achive a louder exhaust note. Has anyone else tried the three inch Delta 40's on their cobras? Has anyone else replaced their mufflers on their dynomax catback with anything else? If so, with what type of muffler? By my research it looks like the flowmaster deltas will fit right in place of the ultra flos.