i too sought dual exhaust,it gives your ride symetry.you can run cat back all custom at 2.25" dia ,add the y pipe before the drivers rear suspension arm.here is a picture,this can be done but you wont get any gains.dont listen to kids who say duals dont belong on hondas.i doubt many of them know how to hold a wrench.they just wish they lived the 4 barrel 4 on floor era.