For those of you complaining there’s not enough Sprint S4 custom ROMs for your Sprint S4, we have some good news for you. You can easily install any Verizon S4 custom ROMs on your Sprint S4 as well. Yes, we are talking about TouchWiz Android 4.4.2 ROMs.
UPDATE: This method also works fine on Sprint Note 3 (flash Verizon Note 3 ROM on Sprint Note 3). Tested working fine also on Sprint S5 (flash Verizon S5 ROM), Sprint S3 (flash Verizon S3 ROM). DOES NOT WORK ON Sprint Note 2!