Collin Klein rushed for four touchdowns and threw another as K-State dismantled Kansas, 59-21 in Lawrence.
The Wildcats moved to 7-0 for the first time this decade and the return of Bill Snyder.
The Jayhawks (2-5) have now lost five straight games and still hold the nations worst defense, giving up 466 yards of total offense and over 42 points.
Klein leads the Big 12 in touchdowns with 14 touchdowns.
K-State outscored KU 45-14 in the second and third quarters combined. Statistically the third quarter has been the worst for the Jayhawks.
The Wildcats led 21-0 in the first quarter before KU scored their first touchdown on a James Sims run.
Kansas trailed 31-14 at halftime but had life until K-State returned the kickoff and the route was on from there.
The Jayhawks will play Texas next week in Austin while K-State hosts #3 Oklahoma in Manhattan.
Kansas and Kansas State are halfway done with the 109th meeting of the Sunflower Showdown, and so far, it's been the Wildcats controlling the game.