Logistics Pipes is an extensive overhaul of the Buildcraft pipe system. It allows for better distribution of items via pipes, more organised stockkeeping and easier automated crafting.
See here for versions in active development.
See here for archived versions for previous Minecraft versions.
Logistics Pipes is a free Minecraft Java mod. Downloaded 13,743,188 times (via CurseForge). Download it and open it directly in the game.