Okay, I hope this doesn't sound stupid, but in some pics I've seen I have seen trucks that are in deep water, and they're exhaust pipes get drowned by the water. So since my blazer is going to be my bogger/rock crawler, I was thinking sort of a custom exhaust set up- routing it up as high as I can, and then when it gets close to the rear have it pop up from the bed, into above/below where the taillights are. Then they would be fairly high to stay away from water if you stall. The only thing I don't really know is how high I can get it up with all the drivetrain and being narrowed eventually. But if it went along the frame, and at the very end, come up through the bed, and curve out into where the taillight mounts like I said, and come out 2 inches or so from there. This may sound bizarre because I haven't been under the trucks for a while, so I don't know where all the drivetrain is for the routing of the pipes. What do you guys think?