Magnaflow # 11255. I tried to get a meaningful clip, but failed. It’s pretty throaty, but not excessively loud. I work along the public byways (city arborist) and loath loud exhaust noise, so I was pleased to find that this one is really more of a tone change than a volume increase. And am especially pleased that it only cost $120 plus a clamp and some welding wire/gas. Cats are still intact, though I did do away with the resonator (some time ago).Any sounds clips of exhaust and what series did you get?