Victor Boniface scored in injury time to give Bundesliga champions Bayer Leverkusen a wild 4-3 win at home to Wolfsburg after they twice had to come from behind amid high drama on Sunday. Three goals came from headers after corners including Leverkusen substitute Piero Hincapie making it 3-3 early in the second half. Granit Xhaka hit the post late on for the hosts after Yannick Gerhardt had been dismissed for Wolfsburg and it looked like they would have to settle for a point. But substitute Boniface swivelled in the box to score and send fans into delirium at the BayArena. Leverkusen, who beat…