I recently installed a new roof rack to replace the factory one. The Prinsu all-aluminum roof rack is relatively new to market and it appeals to me because of it's low profile, light weight, modular design and relatively competitive price. This rack is kind of like buying flat-pack furniture from IKEA...it comes with a bag of hardware and you have to assemble it yourself. The good news is that the shipped package is a great deal cheaper than some of the fully welded racks available. This rack weighed in at 65lbs on the UPS label. Mine did not come with instructions, and the Prinsu website does not have any published for the FJC, but I read the instructions for the 4Runner install and it was close enough to provide me with a plan of attack. Lay out all your parts and separate hardware into similar pieces. I recommend using a cordless driver unless you really like working your forearms. The cross rails are pre-tapped and you just use a pair of black screws, split washers and flat washers on each end of the crossmember. Keep things a little loose at first until you have all pieces installed, then check to make sure it's squared up and then tighten the front and rear members first. The airdam comes with some specialized hardware that fits into the T-slots. This step will take a bit of light hammering with a wood block to attach the airdam to the crossmember, but once completed it makes for a lightweight but solid deflector. If you have any t-slot hardware (like the eyebolts below), now is the time to install them. [More on this later] Next up is to remove the old roof rack. I won't go into those detailed steps, but it's a good time to give the old roof a rinse too. Mine was filthy. I previously had a light bar on the roof and that's what those wires are just above the driver's position.