/teamtitleist/ca/b/weblog/posts/what-team-titleist-is-saying-about-new-tsi2-and-tsi3-drivers www.youtube.com/watch Titleist TSi2 and TSi3 push the boundaries of speed through advanced engineering and material breakthroughs like the ATI 425 Aerospace Titanium face — a material used in the construction of jet engines and NASA’s Phoenix Marsen-USTelligent Community 10