The 3-muffler set up was intended to make it as quiet as stock, but alas it didn't quite turn out that way.So what's the purpose of 3 mufflers? How is that setup?
The MN12's have a lot of room in the tunnel between the seats below the drive shaft and that's where ford put the stock dual in, single out resinator. I simply started from scratch with a magnaflow dual in, dual out muffler in it's place and went back with true duals from there. The other two mufflers as you can probaby see in the video, are directly at the rear, much like an S197.