You Have To Go Official Website As Shown in Video of Devteam Jailbreak

iOS 6.1.3 Jailbreak Untethered Download
Apple Software Update iOS 6.1.3 Compatibility:

iPhone 5 GSM
iPhone 5 CDMA
iPhone 4S
iPhone 4 GSM
iPhone 4 CDMA
iPhone 3GS
iPad mini (GSM, CDMA, Wi-Fi)
iPad 4th-generation (GSM, CDMA, Wi-Fi)
iPad 3rd-generation (GSM, CDMA, Wi-Fi)
iPad 2 (GSM, CDMA, Wi-Fi)
iPod touch 4th-generation
iPod touch 5th-generation