I was thinking about going TVS in the future but if I could work out a sale of mine then I might sell it sooner. I'm really happy with it the thing I hate the most is the non removable plenum and the lack of noise. Unless you're running 16-17lbs you hardly hear it.
It's a black gen 1 Whipple approx. 5500 miles on it, I have 3.5, 3.25, 3.1, and 3.0" pullies for it. Its setup for a single blade TB and is currently running and accufab. I live in the Wichita Ks area so if you wanted to you could come up and hear/see it run, then remove it. I have pictures of the rotors when I removed it from my old car and slapped it on to my new cobra less than 25 miles ago. I emailed the pics to Whipple and they said they look good throw it on and run it. So I did.