I just bought a new in the box Staintune high performance exhaust (triple pipes)system with cat box eliminator collector for $830 shipped. I feel like I just won the lottery!!!!
I was getting ready to buy from the link you send but ran across this one at the last minute. The guy I got it from sold his R3 before he ever got around to installing it.
There's a You Tube clip of a Thunderbird with Staintunes. They sound really good (as good as the now famed Faron Razorbacks). I'm afraid to ask what they cost, however.