how is the install, difficult? That's one reason i stick with slip-ons, incredibly easy to install and i like the look of dual pipe's on the busa. Did u have to move the radiator and oil pickup lines to get the headers in, was this hard to do or pretty straight forward. Thinking about a full system in the near future, but nervous about how difficult it will be, and if i will mess anything up on the bike or have leaks afterwards