Just an fyi...
Many years ago Tone did some experimenting with varios exhaust systems including headers, cat back and just a mufler. The headers actually decreased horsepower. The cat back was only slightly better than just a performance muffler. All were dyno tested. Just some food for thought. However if you need to replace do to rust/damage then go for it. I don't think anyone makes a system for our VX's any longer but any good exhaust shop should be able to bend/weld what you need.