i achieved an incredible 2.25" front, 1.5" rear drop with these cheap M2 racing springs on amazon for the exponential price of $100. (i know right?) while they're definitely NOT performance springs, they are still stiffer than stock. i need to replace the rear Nivomat shocks so that i can level off. also, these springs were actually for the 06-10 charger (what?!) yes. they fit. the 06-10 has a lower spring rate than the 11+. because of that, the car sits lower than i actually should, had i opted for springs made for my year. after having them for about a year and a half, i can definitely tell you they were worth it for daily driving street use.