Seasoned GT drivers Rene Rast and Marco Seefried will join Magnus Racing regulars Andy Lally and John Potter in the team's line-up for the 2016 Rolex 24 at Daytona.
The quartet will tackle the race in the #44 Audi R8 LMS, running in the GT Daytona class - with Magnus having previously run a Porsche 911 GT.
Rast, 29, is a three-time Porsche Supercup champion between 2010 and 2012 - and the ADAC GT Masters champion of 2014.
He was part of Magnus' class-winning squad in the 2012 24 Hours of Daytona, running alongside Lally, Potter and Richard Lietz.
Seefried, 39, is a race winner in the World Endurance Championship's GTE Am class and the Blancpain Sprint Series.
He has also ran six races in IMSA in the past two seasons with Magnus, teaming up with Lally and Potter to win the 12 Hours of Sebring in 2014.