Dunno where I found this Photoshop Idea:
Spoiler
F-15ER (Extended Radar) or F-15EREW (Extended Radar and Electronic Warfare)
Fictional.
This F-15 can detect Air and Naval Units up to around 375.5 kilometers away with simultaneous tracking of 20 targets at once and Features IFF (Identification Friedly/Foe)
Armanent: AIM-174 LRAAM with a range up to 240km (USN Statement)
Since the AIM-174 is about 5 times the weight of an AIM-120 AMRAAM, this F-15 variant could require even more powerful engines.