I just got a used vibrant power1 muffler from a buddy of mine for $5, it's a nice muffler 304 stainless steal (i think) it looks a little ricey for an a4, should i put it on in place of my stock muffler, Does anyone have one of these on their car? And if i do it i'll make it so i can easily change it for stealth runnings. OH yeah mines a b5 a4 Quattro 1.8t

 

whats the part number? i have one and like it