since december i've been running an apexi N1 catback setup but just recently (today) i think i busted a hole in my midpipe :( either that or the flange bolts loosened a little and the gasket fell out or somethin ive got a neuspeed midpipe laying around, same size, 2.5" would it be fine if i...

Has anyone ever done this? Like take an aftermarket front and put it on with the OEM sides & rear? Is this normal?