The pair are two of the longest hitters on Tour, both having averaged more than 308 yards per drive last season to rank among the top eight in the distance category. Koepka played with Titleist clubs last year, while Finau was previously with Callaway Golf.
Koepka is ranked No. 16 in the world and seen as one of the game's rising stars after notching his maiden PGA Tour win last year at the Waste Management Phoenix Open. That victory was one of 14 top-25 finishes in 23 starts, as the 25-year-old also finished T-3 at the FedEx St. Jude Classic and T-5 at the PGA Championship.
Finau, 26, was a rookie last year on Tour after advancing through the Web.com Tour Finals in 2014. He logged 16 top-25 finishes in 31 starts last season, including a T-10 finish at the PGA Championship and a T-14 finish at the U.S. Open.
The news comes on the heels of an announcement from Parsons Xtreme Golf, which has added five PGA Tour pros to its fledgling stable of players, including Open champion Zach Johnson and former FedEx Cup winner Billy Horschel.
Koepka will put his new equipment to use this week as one of 32 players in the field at the Hyundai Tournament of Champions, while Finau is expected to make his first start of the year next week at the Sony Open.