I'm planning putting a SOLO res (24") and SOLO stealth muffler (19") underneath my car. Is there a reason why the exhaust pipe goes under the rear frame and not through the frame? I'm really hoping this will be kinda quite setup and i have room inline for 43 inch's in length.

 

I doubt that even with the 2WD version this would be feasible. See the attached images for reference. You may find more info in the site the images come from.