What? Mig-31 is significantly better than Mig-25.
Faster to accelerate, same recommended top speed, and better low altitude flight performance.
Faster to accelerate yeah but it pulls worse than mig-25 at similar fuel loads
Mig-25:

mig-31:

see how mig-31 has less available g load. It’s cause of the weight, it’s a lot heavier due to the extra fuel
you’re basically trading pull for better acceleration. Mig-31 has roughly double the acceleration of mig-25 at say 8km altitude.
mig-31

mig-25

and if anyones wondering where these graphs are coming from:

What I’m seeing here is Mig-25 can pull 3.2G at 20,000 meters going mach 2.5.
While Mig-31 can pull 4.45G at 18,000 meters going mach 2.5.
And at 10,000 meters…
Mig-31 pulls 4G at mach 1.3.
Mig-25 pulls 3.2G at mach 1.3.
Lower altitudes and low speeds? Maybe less, but I don’t know if that says the full story.
higher altitudes and higher speeds mig-31 pulls more, but lower altitudes and lower speeds mig-25 pulls more essentially
tbh i’m more concerned about its CM count, mig-31m for example only gets 24 countermeasures. Gonna be j-15t all over again

The MiG-31 would be great in the new mode. I’m looking forward to its addition.
who needs countermeasures when you can just go cold and outrun missiles )))
Going cold at Mach 2 would take significant time. If anyone gets into launch range against MiG-31 from side or front - it’s pretty much joeover