The problem is, to many people see supercharge kits as a bolt on mod, so they literally just do that. Built properly there fantastic. Same with turnominis really, people buy a f**ked metro turbo motor, if its lucky it'll get a de-coke, drop it in with an intercooler an expect it to run at 10psi, then birch when it shits the bed. Built properly there fantastic things.
Turbominis out weigh the supercharger tenfold. Bang for buck its turbo all day long.