So I have really enjoyed the Bakflip MX4 on my 2018 Raptor, over the G2 installed on my 16 Lariat. The one issue I have is the drain tubes. Most of the Gen2 Raptors have factory holes in the upper sidewalls of the bed for drainage. The supplied drain tube lines were a very tight fit, very long for upper sidewall fitment, and crimped badly. For my setup, I chose to cut them significantly, but that left a pretty bad bend. Here's the before picture: And a closeup of the "before": Here is everything I needed for the install. The 90 elbows were bought at Lowes, 1/2" PEX and worked great. 1/2" TotalPond Vinyl Tubing at Amazon: https://www.amazon.com/gp/product/B004DL0Y9O/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 I ended up only using the black duct tape, did not need the pipe sealer tape. Here's the "after" install pics. Need to wait for a rainy day to test, but pretty sure this is a much better solution.