I cant speak about newer Scorpions (if they have changed recently, i might be wrong i dont know) but certainly the old scorpions ARE restrictive, you can hear it on the car when it comes on boost, it's quit noticeable if you know what to listen for. It basically sounds like air being forced through a hole smaller than it can get through fast enough, kinda sounds like a jet?


Not only can you hear it, 2.5" from turbo back down to 2" in the backbox you can see it! not exactly the best picture but you get the idea



believe it or not