Ulster have selected Bowe, who damaged knee ligaments in an earlier round, among their replacements for their clash with English Premiership leaders Saracens at Twickenham Stadium on Saturday, while Zebo goes straight back into the Munster line-up for their game at the Twickenham Stoop the following day against Harlequins.
"Tommy has trained very well. He is chomping at the bit to get out there - he has missed a lot of rugby and he wants to play," said Ulster coach Mark Anscombe.
"We want to accommodate him because he is a world-class player. It is a credit to our Head of Strength and Conditioning, Jonny Davis, and to Gareth Robinson, Alan McCaldin and the rest of our medical staff that he is ready.
"We're playing in the quarter-final of a great competition, at one of the best grounds in rugby, against the side leading the Aviva Premiership and there's going to be a big crowd. It doesn't get any better than that."
Zebo passed a fitness test earlier in the week and Munster head coach Rob Penney had no hesitation in throwing him straight back into the side after skipper Doug Howlett pulled out with injury. Zebo scored a hat-trick against Racing Metro 92 in Round 6 to secure a quarter-final ticket for his side.
Meanwhile, Harlequins wing Ugo Monye is hoping to turn Sunday's Heineken Cup quarter-final into another showcase occasion for him to convince Warren Gatland, who will be watching both quarter-finals in Twickenham live, he is worth a second Lions tour..
The man who sped away for a vital interception try in the record equaling defeat of the world champion Springboks in Johannesburg four years ago may be on the fringes of the current England set-up, but he intends to prove in the heat of a European battle that he has still got what it takes.
Gatland, who will name his tour party for Hong Kong and Australia on 30 April, will be at the Twickenham Stoop to see the reigning English champions take on mighty Munster and will no doubt be delighted to get the chance to see Zebo back in the Munster starting line-up.
"Of course I still think there's a chance of me going on the Lions tour. That's my motivations each and every week," explained Monye.
"You aren't being ambitious if that thought isn't in the back of your head. The Lions tour in 2009 was the best thing I have done in my entire life - I'd be pretty hard pushed to replicate the emotions I had in that Third Test.
"I spoke to some of the elder statesmen then, like Brian O'Driscoll, and they said that was the best tour they had ever done as well. Which players did I learn from on that tour?
"Well Ronan O'Gara is one of the players I respect more than anyone. He is so honest and will put his hand up when he has a bad game.
"He works hard, is incredibly professional and as a winger if you're not on your game he will make you look stupid. I'm excited about the challenge of locking horns with him in the Heineken Cup. He's an exceptional player, but he's one of many in that Munster team."