Dan Robson and Thomas Young each claimed two tries as Wasps won 34-20 at Newcastle Falcons on Sunday to sustain their Premiership title hopes.
Third-placed Wasps have now won nine of their last 10 league matches and sit just four points adrift of leaders Saracens, who retook top spot with victory over Exeter Chiefs on Saturday.
The match was effectively decided when Robson's second try, in the 54th minute, was swiftly followed by Young's first, securing a bonus point for Wasps and a 14-point lead.
A converted George McGuigan score halved Newcastle's deficit, but the hosts - who introduced former Wasp Andy Goode off the bench with 10 minutes remaining for his final career appearance - were beaten when Young crossed again late on.
Danny Cipriani, the England international rejoining Wasps next term, inspired Sale Sharks to a 27-20 victory over Leicester Tigers in a hugely eventful match briefly halted by thunderstorms in the second half.
After Tigers wing Vereniki Goneva had dropped the ball over the try-line early on, Cipriani had a hand in Sale's first two tries - the second a freakish score that saw a clearing kick from the fly-half somehow stay in on the right flank before Will Addison booted the ball forward and play was switched inside for Nev Edwards to touch down.
Leicester pulled level through scores from Tommy Bell and Goneva, either side of a 12-minute break due to lightning overhead, but it was Cipriani who had the final word with a solo try he duly converted.
Sunday's other match saw Northampton Saints come from behind to beat Harlequins 29-23 and climb to fourth. Ben Botica twice missed penalties that would have put Quins back in front prior to Harry Mallinder's late try as both teams claimed bonus points.