When turning around with your big Charger, put the car in reverse, turn the wheel, slightly depress the gas pedal, you'll notice the front end shutters really badly, and you lose power, you will have to fully depress the gas pedal to get it to move, don't wreck your lemons! Easiest fix I found was removing both mufflers on the single exhaust, loud as hell? Yes, but you get more power an more gas mileage and shuttering is barely noticeable.