Well guys, I finally have some money saved up and I have to have stacks on my 05. I would like to keep my bed as funtional as possible. I wanna have dual 4" straight cuts with the rain caps. However, I don't really know what kind of material i need for underneith the truck. I plan on running straight pipe, well almost... . stupid CATs. But if anyone can help me out on this, how you ran the exaust, how many parts, and even some pics would be helpful. Any suggestions would help. Thanks in advance