I was looking for the exact same thing when i purchased my exhaust. I've been more than pleaseed with my Racing Medalion! Its got an incredible sound, very deep and mean. Although I can pretty much promise you that its quite a bit louder than you're expecting.
Not too loud at idle or just cruising around, but at WOT she sounds mean as hell. Fully Stainless Steel, with a small muffler. It sounds to me to be fairly comparable with the HKS TI at WOT. I drove my car and then immediately aftwards was in another supra with the HKS TI and they sounded very much alike.
I hear that the blitz are kinda hard to find though....don't know if this is true or not.