The difference between a Gen 4 and a modded Gen 3 (blower )is this.I can take a Gen 4 hand the guys to a professional test driver and let him beat the living hell out of it all day in 90 degree heat and the car will live.(if there is a problem its covered by Dodge ).Any time i have done the above with a supercharged car there was an issue(and i have had NUMERIOUS ones rested built by some of ther very best tuners out there ) .Resale wise there is no add on book value for things like blowers (you got 25 grand in a motor that car is not worth a dollar more in the book than a stock one.As a matter of fact MANY dealers will not touch the thing because of the blower ).