[My1stStang]

I've got a Mac Prochamber with Mac mufflers also. It sounds pretty mean! I get comments all the time that the sound is so much better than the typical flowmaster sound. If you want the same old sound that you hear on the street, flows is the way to go. But if you want a new aggresive sound, check out a Mac system. Also, it is probably the easiest to install yourself. No clamps or anything. Just my opinion!