Hi everyone
I drive a 2012 lancer gts, and wondering if I go dual exhaust do I need to a rear diffuser to accommodate the second exhaust? Just want a deep sound like you hear from an evo or ra. What kind of exhaust do I need for that and rear diffuser. Pls help just dont known where to begin.

 

If you plan on going with a dual exhaust on your GTS you have two options, have the original bumper cut or buy a new bumper/diffuser. The first option given is a lot cheaper and usually the shop that is doing the install will be able to make the cut. The second option is the more conventional route. You can either buy a ralliart rear bumper or an evo x styled bumper. If you decide to go the second route, it's best that you buy the bumper and install (paint if necessary) first so that you can make sure that the exhaust tip exits line up with the bumper/diffuser cut outs.