Learn how to install any of these roms on your phone/tab from here
To download any of these Roms, click the link of the Rom you want then scroll down to the bottom and wait for the 5 secs to count down, enter the captcha an hit download.
Download Samsung Galaxy S4 GT i9500 Stock Roms
Download Samsung Galaxy S4 GT i9505 Stock Roms
Stock Rom Germany
Download Samsung Galaxy S4 SCH R970 Stock Roms
Download Samsung Galaxy S4 SCH i545 Stock Roms
Download Samsung Galaxy S4 SGH I337 Stock Roms
Download Samsung Galaxy S4 SGH I337M Stock Roms
Big thumbs up to stockroms.net for uploading all these roms