# Efficiency module (technology) internal name `efficiency-module-2` · tier 6 (pY science pack 3, [tier 6](https://factorio.kalzumeus.com/tier/6.md)) · upgrade HTML page: https://factorio.kalzumeus.com/tech/efficiency-module-2/ ## Cost 2000 units of (1 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 2 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 3 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 6 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 10 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 20 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 180 s each. ## Requires (2) - [Efficiency module](https://factorio.kalzumeus.com/tech/efficiency-module.md) - [Machine Components - Stage 3](https://factorio.kalzumeus.com/tech/machine-components-mk03.md) ## Leads to (2) - [Bhoddos upgrade](https://factorio.kalzumeus.com/tech/bhoddos-upgrade.md) - [Efficiency module](https://factorio.kalzumeus.com/tech/efficiency-module-3.md) ## Unlocks (1 recipes) ### Efficiency module 2 (`efficiency-module-2`) - 30 s · tier 6 - Ingredients: 1 × [Efficiency module](https://factorio.kalzumeus.com/item/efficiency-module.md), 1 × [Utility Box MK03](https://factorio.kalzumeus.com/item/utility-box-mk03.md), 1 × [Control Panel MK03](https://factorio.kalzumeus.com/item/controler-mk03.md), 2 × [Electronics MK03](https://factorio.kalzumeus.com/item/electronics-mk03.md) - Results: 1 × [Efficiency module 2](https://factorio.kalzumeus.com/item/efficiency-module-2.md) - Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion, (flying) - Unlocked by: [Efficiency module](https://factorio.kalzumeus.com/tech/efficiency-module-2.md)