I am deciding which to get for my '02 Roush Stage II - either the Kenne Bell or the Vortech turbo- both run about the same price $4K or so and though I would love to stick with all of the Roush parts- their charger is like $8K and much too much for my taste- does anyone have opinions about which supercharger would work best- I'm not looking to do serious racing or anything- I just want to get my 0-60mph times down in the high 4's/low 5's- thanks in advance for any suggestions.