Guys Ive deciddd to stick with the Flowmaster mufflers becuase I want to stay close to the classic Flowmater/mustang sound. That being said this is my first Terminator, though Ive owned numerous v8 mustangs in the past. Im also leaning toward the UPR orx. Any advice on if Im headex the right direction to achieve the sound Im looking for is greatly appreciated. Oh yeah what you guys think sound wise:shrug: 2.5" o:shrug:r 3"?