Oh, yay, something I can comment on from experience.
I've used the Thrush turbo on many cars. I used one on my 2.3 Turbo Coupe with straight pipes, no cats.
It sounded mean, but was very quiet, turbo spool was very noticeable.
Used one on my Horizon, straight pipes, same thing, sounded mean but was quiet.
Put one on my buddies escort, sounds stock, just a little more aggressive.
Cherrybomb glasspacks, put a set on my dads 68 Chevy, 350, loud, mean and down right nasty. They complement his cam lope perfectly.
Glasspacks will eventually become hollow. Same as those ebay fart cans. They get loud as hell, but they're cheap.
Dual exits with two Thrush turbo's and no cats might actually sound good, I run Flowmasters behind my 5.0 and will never go back.
Nick Conforti - 1987 Ranger XLT - 302 - Cam - Edel Intake - Edel 650 4 Barrel- GM HEI - AOD - D28 - 8.8"- Discs - 31 Spline - 3.73 - L/S - 30" - Sony Headunit - Kicker Components - 3 12" Audiobahn 1251T @ 35Hz - HFi1000.1D Mono Class D