so i bought a magnaflow o/r xpipe a week ago from a guy on a local mustang board. its in (not on) the car and i was looking at it a little more closely than before. well...i noticed something that seemed wierd to me. the flange on the passenger side of the pipe is an oval shapde, where as the flange on the drivers side is round. (this is on the front of the pipe where it meets the manifolds.) is this normal or did i get screwed?