One thing that most people don't know about Amuse is that they (upon request and somewhat regularly) build one-off exhausts for their customers in Japan. Unfortunately, it's not as easy for those of us overseas as they need the car in there shop to get it done. I suppose they could technically just build the exhaust on one of their shop cars and send it over if someone really wanted one, but I'd expect it to be rather pricey.
Anyways, check this out. Can you tell where the canister inspiration came from?
(Props goes to jdmevolved.com for finding these images)
-Mike Bratcher