Ok I thought that is what i was doing but for example this is the readme for the latest one im working with and this does not not tell me where the .kext file is unless i'm overlooking it.
"AirportBrcmFixup
==================
An open source kernel extension providing a set of patches required for non-native Airport Broadcom Wi-Fi cards.
#### Notes
This repository should be compiled with [Lilu](
https://github.com/vit9696/Lilu) ***v1.1.6*** and greater, otherwise the compilation will be failed!
Note: ***Debug version of Lilu.kext should be put in the same folder as BrcmWLFixup! And they should be also used together!***
#### Features
- Supports AirPort_Brcm4360, AirPort_BrcmNIC and AirPort_BrcmNIC_MFG
- Implements patch for chip identificator checking (0xaa52), in <=10.12 it's required for successful driver starting
- Implements patch for "Failed PCIe configuration patch", required for some cards
- Implements patch for "Third Party Device" (returns vendor name "Apple")
- Implements patch for removing of white-list check
- Implements 5Ghz and country code patch (US by default)
- Implements WOWL (WoWLAN) disabler (turned on by default) - no low speed after wake
#### Installation types
- Clover Airport Fix + AirportBrcmFixup
- Clover Airport Fix + AddProperties(fake device-id) + AirportBrcmFixup (preferable)
- Clover Airport Fix + AirportBrcmFixup + FakePCIID + FakePCIID_Broadcom_WiFi.kext
- AirportBrcmFixup + FakePCIID + FakePCIID_Broadcom_WiFi.kext
#### Boot-args
- `brcmfx-country=XX` changes the country code to XX (US, CN, #a, ...)
- `-brcmfxdbg` turns on debugging output
- `-brcmfxbeta` enables loading on unsupported osx
- `-brcmfxoff` disables kext loading
- `wl_msg_level=0xXXXX` & `wl_msg_level2=0xXXXX` set log level for native network kexts
- `-brcmfxwowl` enables WOWL (WoWLAN) - it is disabled by default
- option `brcmfx-country` also can be injected via DSDT or AddProperties/Arbitrary in Clover
#### Credits
- [Apple](
https://www.apple.com) for macOS
- [vit9696](
https://github.com/vit9696) for [Lilu.kext](
https://github.com/vit9696/Lilu) and great help in implementing some features
- [PMheart](
https://github.com/PMheart) for the initial idea and implementation
- [darkvoid & RehabMan] for FakePCIID implementation (partly it is used in AirportBrcmFixup)
- [lvs1974](
https://applelife.ru/members/lvs1974.53809/) for writing the software and maintaining it