# Do Stat boosting CBMs stack?
**URL:** https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220
**Category:** The Bunker
**Created:** [October 28, 2018, 10:12pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220 "2018-10-28T22:12:38Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Krisu](https://discourse.cataclysmdda.org/u/Krisu)
#### Post date: [October 28, 2018, 10:12pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/1 "2018-10-28T22:12:38Z")
For example, if you had 2 cerebral boosters would the 2nd one even do anything?
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### Author:  [@Walegrin](https://discourse.cataclysmdda.org/u/Walegrin)
#### Post date: [October 28, 2018, 10:13pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/2 "2018-10-28T22:13:59Z")
Not that I am aware of. Does the game even give you the option to install a second one?
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### Author:  [@Theundyingcode](https://discourse.cataclysmdda.org/u/Theundyingcode)
#### Post date: [October 28, 2018, 10:22pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/3 "2018-10-28T22:22:02Z")
They don’t stack. The code basically checks if you have one or not.
You can’t get two of anything but power storage cbms through normal game play.
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### Author:  [@Walegrin](https://discourse.cataclysmdda.org/u/Walegrin)
#### Post date: [October 28, 2018, 10:24pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/4 "2018-10-28T22:24:11Z")
That is what I thought.
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### Author:  [@Eastwardrope91](https://discourse.cataclysmdda.org/u/Eastwardrope91)
#### Post date: [October 28, 2018, 10:58pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/5 "2018-10-28T22:58:49Z")
They do stack with stat effecting mutations and I believe there are two strength cbms an active one and a passive one which stack.
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### Author:  [@Walegrin](https://discourse.cataclysmdda.org/u/Walegrin)
#### Post date: [October 28, 2018, 11:03pm UTC](https://discourse.cataclysmdda.org/t/do-stat-boosting-cbms-stack/17220/6 "2018-10-28T23:03:38Z")
Good point about mutations and CBMs stacking.
And good point as well about Muscle Augmentation and Hydraulic Muscles.