Emanuel will push for more game time in Cardiff’s bid for the play-offs along with Bowen.
The wing has made 10 appearances for the Blue and Blacks this season and scored seven tries, including a United Rugby Championship (URC) hat-trick against Munster in Limerick.
It had also been reported Bowen’s game-breaking exploits had caught the eye of French Top 14 side La Rochelle but the rapid wing has agreed fresh terms at the Arms Park.
“As an environment, I imagine Cardiff is very hard to beat,” said Bowen, whose deal has been described by the club as “long-term”.
“I have high-quality players all around me, people I can keep learning from and compete with, which will only continue my development.”
Bowen, son of former Scarlets fly-half Gareth, was with Bristol Bears while studying at Clifton College and signed for Cardiff in 2024, making his senior debut against Cheetahs in December of that year.
The 5ft 7in (1.73m) wing was mentioned as a potential bolter for Steve Tandy’s first Wales squad in the autumn, but has been left to develop in club rugby and with the under-20s.
Bowen started all five games of his final Under-20 Six Nations, scoring a double in Ireland, and is poised to feature at the World Rugby Junior World Championship in Georgia this summer.
“His point of difference is obviously his finishing – he has the ability to finish opportunities that not many other players could,” added Van Zyl.