Start from the front, get it attached to your cat or test pipe loosely, use wire or other means to hold it up in the back then put mufflers on, at the end of the muffs I ended up making my own hangers used with the clamps,once your under there you'll see where you can attach these on the body. Get that stuff where you want it, then you'll have an idea where to attach tailpipes, I didn't have to trim or cut anything just took alot patience and tweaking mainly on the tailpipes not too much room between the upper control arms and springs, tweaking of both tail brackets were also needed, take your time you'll get it...Mike