I also went with an Accurate system for my 68 Hemi Road Runner. The fit to the manifolds was perfect and the only mod I did was to weld my resonators to the pipes that fit over the axle. You can get them either way and I initially ordered as separate pieces. In my case, as I was putting the system together, it made more sense for me to make those parts as one item for easier installation. However, to install it as one piece you need to have the car on a lift (my case) or put that part of the exhaust in place before the rear end goes in. I also needed to trim down the nipple for the heat tube about 3/4" - 1" or so for a better fit. I upgraded my Hemi mufflers to the "aggressive" sound models and I'm very happy with the tone. I have 4:10 gears in the car and at highway speeds I can still enjoy the radio or have a conversation. When I hit the loud pedal I hear mostly carburators vice exhaust - sounds awesome! Here are links to a couple of short videos to give you a sample of the sounds.
http://www.youtube.com/watch?v=YMutENguP8Ehttp://www.youtube.com/watch?v=l-bhI1FDUWE&feature=relatedJim
68 Hemi Road Runner
