Overall, Graviton ROM is a beast when it comes to performance and also gets great battery life so if you are looking for such a minimal TouchWiz ROM, definitely give this guy a go this weekend and do let me know what you think!
Download Graviton ROM for Galaxy S4 (for AT&T SGH-i337, T-Mobile SGH-M919, Canadian SGH-i337M, or GT-i9505)
No Gapps required (comes with it!)
To install, reboot into recovery, make backup ROM, wipe data/factory reset, install ROM, and reboot. (If for some reason you end up in a bootloop, reboot into recovery, go to Advanced Wipe for TWRP or Mounts & Storage for CWM, format/wipe /system, then re-install ROM.)
(First time installing custom ROM? See How to Install Custom ROM on Galaxy S4 first!)
Credits – XDA <— Please donate to the developer of this ROM or hit Thanks button on XDA if you like it, thx!
Want latest Android L Preview Keyboard? See How to Install Android L Preview Keyboard on rooted Android!
Want Flash Player? See How to Install Flash Player on Android 4.4.2/4.4.3 KitKat!
If you want some awesome audio, check out Viper4Audio FX MOD, which you can install on this ROM to enhance your music 100%.
What is a Custom ROM?
A custom ROM is a custom, modified operating system that you can install on your Android device. Basically it's like installing Windows OS on a Macbook. By installing a custom ROM, you can bypass stock factory settings like locked hotspot tether, install new Android versions early, or even convert your phone into another OS.
With a custom ROM, you can really maximize the capabilities of your smartphone by adding custom features that have been developed by open source developers.
How to Install Custom ROMs
First, you will need to root your device, if it is not rooted yet, follow our root tutorial and root your phone.
Once rooted, you should have TWRP installed on your phone. Installation of a custom ROM is easy if you learn the basic of it. If you don't know how to install custom ROMs using TWRP recovery, see our tutorial on How to Install Custom ROM using TWRP!