Liam Plunkett claimed 5-32 as Yorkshire dismissed Division One champions Warwickshire for just 128 on the opening day at Edgbaston.
The Bears managed their lowest total since their last home defeat in the LV= County Championship in 2011 before the visitors reached the stumps on 11 without loss.
Plunkett removed three top-order batsmen in the space of 18 balls without conceding a run before coming back to take his final two wickets in successive deliveries.
Captain Jim Troughton was the only Warwickshire batsman to stand firm against the Yorkshire seamers, the left-hander battling away for three hours to make an undefeated 65.
Ryan Sidebottom soon vindicated Andrew Gale's decision to bowl first after winning the toss by dismissing Varun Chopra, back with his county after England Lions duty, courtesy of a slip catch by Adam Lyth.
Plunkett came on as first change to remove Wlliam Porterfield, Darren Maddy and Tim Ambrose in quick succession, the latter pair both failing to trouble the scorers.
Troughton did his best to launch a counter-attack, hitting some pleasing shots to get 10 boundaries, but he received little support from the rest of his team.
Sidebottom had Rikki Clarke (14) leg before and after hanging around for 40 deliveries, Tom Milnes departed for a determined 11 to Steve Patterson (3-46).
Lyth and Joe Sayers made sure the visitors - who could yet draft Tim Bresnan into their XI if he's not included in England's side to face New Zealand at Lord's - survived five overs without any damage before close.