I can't decide which one to buy, an 03 Cobra or a supercharged S-281. Would the Cobra outrun these pretty good? Also my friend has a Stage 3 Roush. I wanna kick his butt cause he whoops me in my 01 Cobra right now. Just wanted input on which one to buy. Also if i go with the 03 and i upgrade to the smaller blower pulley, what else would i have to do (ex, chip, fuel injectors, etc). Thanks guys!