I DONT THINK YOU CAN BUT IF YOU DO YOUR GONNA LOOSE POWER BECUSE THE GSR IS DIFRENT FROM THE REGULAR LS IF THATS WHAT UR LOOKING AT I WOULD GO WITH A GSR TYPE PARTS JUST SO YOU DON ROB THE MOTOR OF POWER ALSO THE LS AND GSR ARE TOTALLY DIFRENT IN SOME PARTS AND SOME PARTS THEY MACH UP. ANY THING ELSE YOU NEED HELP WITH ?