Looks good, too bad it's not going to last long. HKS makes the shittiest exhausts I have ever seen. The mufflers will start to rust out about a year or so and you'll end up having to redo the whole thing.

I have a 2.5 hks ss catback. I had the same problem and ended up only being able to use the actual pipe and had to replace the muffler with a magnaflow.