For 2013, Koch returned to SR² Motorsports, for which he had driven a limited start-and-park schedule late in 2012, to run most of the season in the team's No.24 and No.00 Toyotas.
Koch returned to SR² Motorsports-and-park schedule late in 2012. This was for 2013. This was to run most of the season in the team's No.24 and No.00 Toyotas. He had driven a limited start for SR² Motorsports.