Yes,it is the a-body kit from Summit.The system is actually made by a company called Hearthrob exhaust.You can go to there site and check out the system.I believe a few others on the site have used the same kit.
I also bought the H-pipe kit from Summit,cant remember off the top of my head where I bought the turndowns.
No pics underneath the car,but if you go to www.heartthrobexhaust.com click on header dual kits.this is the kit summit and jegs sells.