That means the Raptor will be need some upgrades in order to maintain its aerial advantage.
Among them were new stealthy underwing fuel tanks and associated pylons, missiles, and what could be new electronic warfare or infrared search-and-track (IRST) pods.
Today, the Raptor has 600-gallon fuel tanks it can carry underwing, but these tanks reduce its observability to a degree.
The new fuel tanks intended for the F-22 are meant to offset some of that reduction.
An F-22 Raptor over McEntire Joint National Guard Base in November 2017.