Ya, the previous owner bought that setup off of ebay and didn't know that the t-4 had been shortend.I've inspected the can ,and you can tell it has been modified(probably for racing).that exhaust looks wierd.
I havent ever herd a regualr T-4 up close but I think with the shorty its a little louder. And KFX400 is rite.. For just a stock motor and just a pipe (not even a filter) it runs pretty nice.How loud is the shorty? I have a PC on my z and thought about shortening to clear the brake caliper.