yeah agree with stew, gotta have em coming out the back, was a member with a side exit n it didnt look too good in my opiniong but what about a quad exit?
depends what you want mate, if it its to look/sound good go for as many as you want although i would agree with the above go for a single. fits nice no bodywork needed.
also with a single exit means less weight = faster car, thats the way i see it any how, mucho power and no weight muwahahahaha! :laugh: