Hello all, new to the forums. Got two questions for ya'll. Recently I just made 2 modifications to my 09 Charger R/T. 1 was new rims, went from the stock alloy 18's to to alloy 20's. Also installed a Mopar CAI. When I floor it I can definitely hear the CAI growling, but I feel like I may have lost some power in acceleration ie: I don't get pushed back in the seat like I used to. Doesn't feel like a HUGE loss, but I'm leaning towards something is wrong ... any ideas? Thanks.