Hard to believe it will pick up alot..ive never done it on the GN but have on other cars..lt1 camaro & tpi iroc-z & noticed very lil if anything & couldnt steer it woth a crap..so I put the belt back on & ran about the same..AC delete wouldnt help much either if your not running the air..it free wheels as it is...sounds like someone took belt off & by time they ran it was cooler..well good luck !! try it..I know all cars are different but this was my experience..just wasnt worth it all to me
Brian