problem with magnaflow

my buddy just installed a magnaflow cat-back on his 00 civic ex, but the fiitting isn't the greatest. the exhaust hangs down pretty low where the clamp goes and i'm worried about it. Theres also a little bit of exhaust leaking out causing a bad noise. Also the magnaflow nuts were to wide for the bolts on the catalytic converter. What should he do?

remove the cat (if your worried about emmissions then ignore that statement). take it to a shop and have them clean it up (a reputable shop) they should be able to raise it up a little based on resizing the metal holders.

who did the install the first time?