For anyone that has mounted their bottle sideways, just behind the fold down seats, what did you use for a blowdown tube? I would only use the tube at the track. To avoid drilling, I just want to vent down to the grommet in the spare tire well. It seems like if you sit the bottle and pickup tube properly, the blowoff fitting is aimed in the worst possible direction. If I pick up a U shaped tube, are you allowed to attatch something to the end of the tube to make it the rest of the way?