Yes, most OEM forced induction is weak. For example, the Protege only gains 30 hp from its turbo (from 140 to 170). But is low boost (about 6psi)
The Cobra gets about 8 psi or so. But yeah, OEM blowers still suck alot. You could get about 450hp no problem with a real blower on a stang. But they need to maintain reliability, so the desire to cover their own ass overcomes the desire to provide desirable cars.
Morale of the story: Buy the NA version, then slam on aftermarket kit, save yourself money, add some fun
