the extended is like 20-30 more than the standard length. and I would spend the few extra dollars because with the lip it's going to hide the tip more. but if it's extended it'll be an inch or too longer so you can see it better. I have stock exhaust and TRD
rear and I can't really see the tip all that well. it's kinda recessed into the bumper so it doesn't even stick out past the back end of my car.