Just to add a little fuel to the fire... has anyone seen the Car Craft magazine? In the speed shop section they are showing a new Dynomax muffler that has the X pipe built in. Dual inlet and dual outlet. No X pipe or H pipe to worry about. It's called the Ultra Flow X and it's $129 from Summit. The only problem I see is that the inlets are on the same end and the oulets on the other. If they wold run an inlet and oulet on each end you could mount it transverse and do away with all the extra stuff in the exhaust system.