Months ago when they were asking for thoughts and ideas I voiced my dislike for the sight tube. I suggested at that time (maybe it was on another forum) that if an oval sight window cost too much and one single small round sight window wouldn't give a good view... then use two round sight...
Use 2 site glasses, 1 at the min level and 1 at the max, or an oval site glass.
I don't think I would buy the tank if it the final design has the external fittings and a site tube like the 3D drawing.
The tank itself looks great... but the sight tube looks like an afterthought.
I know this is just a 3D model but IMO the plastic push-loc fittings with a bit of plastic tubing are the weak point of the design.
This kit is also available from BPD http://www.bulletproofdiesel.com/Do_It_Yourself_aluminum_tank_intercooler_upgrade_p/intercooler-tank-upgrade-kit.htm
I have a file I can send you that contains all the info I could find before I installed a set of 2011 mirrors onto my 2006. PM my your email address and I'll forward it to you.
I'll let you know, pretty sure I'll want to sell them after I get new wheels.
Would you be interested in just the (4) Aluminum wheels or all (7) wheels (including the (3) oem steel wheels)?