So I just received my tsudo catback in the mail. I took all the peices out to make sure I had everything I needed and there were these oval like shaped peices in their (the photo below). The box came with three of these. I'm pretty sure they go in between where the exhaust components connect. Figuring this I added up only two places where there was that shape of an opening, yet three pieces. I hope this makes sense :p but anyways is this because two maybe need to stack on top of each other when connecting a certain piece? Or did they just give and extra just incase? Orrrr maybe there's another place that the third one goes? Plz help! Thanks