i believe that summit sells heartthrob exhaust under their own brandname,the pics on the supliers website might help you out:)
http://www.heartthrobexhaust.com/8158740p.html
i work with exhaust stuff all day long but im useless at explaining how to fit stuff together that i havent ever bent up by myself or atleast had the oportunity to put my hands on.
one advice that works for me is to lay out the pipes on the floor and compare it to how the car looks and if im still unscertain a few quick measurments under the car before going for the install usualy does the trick.
best of luck on your install!