The rally thing to do is to mount it as far back as possible to keep the likelihood of melting down low. Like using it as the tailpipe. And if you do clog it, it's easier to repair/replace if there's only one connection to the exhaust.
Plus red/orange substrates look awesome in photos
Man, it's a shame you need a radiator and stuff. Those headers are begging to both cross over the front to the other side.