The more that i think about this the more legit it seems. one question ive come across: Eaton recommends this supercharger for 3.0-4.5L engines. Why are they putting them on 2.0L cobalts and making them work? does that mean we could/should use the R1900/R2300 (4.0-8.0 L)?

It does say the 1320 is recommended for up to ~500 hp, but still.