could not find a place around me that did manrel bends so i had to settle for compression bends. It cost me 180 for the thermal muffler and tip and <120 for the instal (including piping) so all and all I spent a little under 300
EDIT* I opted for the 2.25 piping, you dont really need any bigger than that unless you go turbo.
Yeah that does look crush bent...most muffler shops lack the machine to make mandrel bends. You usually have to order the bends and have them cut and weld it into your system. Mandrel bends dont get smaller around the curve, they maintain the same OD