Review on Upower Exhaust Polished Stainless Length by Chris Norman

Before I start I want to say that I may have a different experience than most because my exhaust is noisy. I have a 4 liter V8 in my BMW. I have a muffler and a second car and it's noisy. I've had them for 3 months and they have already failed. Maybe my straight subway car caused them to die early idk. First, resonant things started to appear after the first week. About a month later I noticed a knock in the exhaust, but it was so faint that I ignored it. Fast forward 2 months and this thing sounds like someone put 100p in a color mixer and turned it on. Now I'm waiting for more driving tips because I'm embarrassed to drive a rattling fart box.