Wiki:-
"The Tu-160 is powered by four
Kuznetsov NK-32 afterburning turbofan engines, the most powerful ever fitted to a combat aircraft. Unlike the American
B-1B Lancer, which reduced the original Mach 2+ requirement for the B-1A to achieve a smaller
radar cross-section, the Tu-160 retains variable
intake ramps, and is capable of reaching Mach 2.05 speed at altitude.
[38] The Tu-160 is equipped with a
probe-and-drogue in-flight refueling system for extended-range missions, although it is rarely used."