I have a SPT exhaust for a 2008 WRX for sale. It was too loud for me so I had a resonator welded in. Quieter now and sounds good, but still a little too loud to drive clients around, so I'm selling. I suppose you could have a shop take out the resonator and weld in a piece of straight pipe if you want. Only on my car for about 200 miles, so it's in good shape. There is a dent in the top of the muffler which the suby dealer told me was needed to fit it properly. No impact on sound or perfomance.
$150 - pick up only in or around Grand Rapids, Michigan.