I work in the cooling industry and understand heat transfer yet I was skeptical, so I called for more information and happened to get the President of Ultra Cool and based on the conversation we had I was convinced to go with the Ultra Cool Oil Cooler over any of the competitors products available on the market today. Once I received the unit I proceeded to do some bench testing, dry fitting and manufacturing of a custom bracket for the unit so I could retain my existing vapor canister in it’s stock position. I needed the bracket because exact fitment for a Dyna was not yet available. Well I got it all installed and road tested and I must say I’m very pleased with the results! No issues with installation, hose fitment or leaks as the instructions were spot on! Everything you need is in the box! BTW I vacationed near the Ultra Cool office and had the opportunity to tour the building and was very impressed by the cleanliness and organized facility they have. The team was very helpful and made this installation a breeze. Thanks Ultra Cool!