You have choices on what type of system you want! Whether it's a simple Cat back with a muffler and mandrel bent tail pipes, all the way to splitting your factory system into dual with a SpinTech X-Pipe! You choose the muffler, to X or not to X, and the option of where to exit. In front of the right rear tire with our dual S/S GT Oval tips. Or you can go over the axle and exit with either a single 2-1/2 or 3 inch. There's more, you can also run dual out behind the right rear tire or split them and run them out each side or straight out the back. All of those are available in either 2-1/4 or 2-1/2 inch, and everything is mandrel bent for optimum flow! WOW! No other manufacturer gives you so many options!