I just bought a 2005 dodge magnum rt with 58k miles on it. It has typhoon cold air intake and magnaflow exhaust i notice that when its in nuetrual or park and i give it more than about half the pedal the car starts to rev and then seems to bog down and sound like its only reving about half the cylinders? is this part of the 4 cylinder technoligy or should it rev up like any old muscle car or maybe it needs to be tuned because of the mods? It runs great when i drive it seems to be strong through all gears i dont notice any problems. but when i rev it it doesnt seem to respond as it should can some one please give me some insite on this?