We have had many happy CTS-V owners with this kit on their vehicle.
Last time I checked Dyno's were very particular. Their are so many factors while dynoing a car or a product. We have dynoed a Kit here in AZ and got very good results and that was not even with a tune.
If you dont like the product thats fine, but dont knock it cause your dyno did not have good results. I can guarantee if you dyno this kit in 5 different states with 5 different cars, that you would get 5 different results.
So why do your results that you claim you got are etched in stone and no one could ever get a better # than that. That is the only BS in your claim.
Where is your dyno sheet?? Where are the before and after dyno sheet's??
P.S I am sure your stock box with a small paper filter and restrictive intake tube provided better results.