really need some help over here..what kind of exhaust that really fit vios??last time i went to exhaust shop,bring over newly bought rs*r exhaust to fit in the car..suddenly,after jacking...towkey said cannot fit....there's hardly enough space to put on because the rs*r is oval type,vios ori is tube type..aiyaa...so how??is there any tube type exhaust that offer s flow??can an auto car like vios run on straight flow exhaust??might loss some torque over there:hmmmm::hmmmm:....plssss