I'm getting ready to buy a magnaflow muffler pretty soon to replace my stock resonator. I was thinking about using magnaflow part number 13278, its a 4x9 muffler, with dual 2.25in inputs and single 3in output. It has a 14" body and 20" overall. I figured this one will fit well up there? Is this one a good choice? How will it sound compared to stock setup?