If not giving any HP I'm pretty sure it made my turbo spool up faster.
The guy is local and probably doesn't get TOO much business because I can't see people being able to shell out $100 to dyno and tune or $75 for 3 pulls.
At first when I talked to him he said about an hour, but when I called yesterday to confirm he said about two hours. So hopefully I will spend about 30 min testing these devices, and the next hour and a half tuning