However , despite the improved success , few teams made the switch to the Infiniti .
The company left the series after the 2002 season to focus on powering the league 's new Infiniti Pro Series ( now Firestone Indy Lights ) .
However , despite the improved success , few teams made the switch to the Infiniti and the company left the series after the 2002 season to focus on powering the league 's new Infiniti Pro Series ( now Firestone Indy Lights ) .