They both have the same long gone obsolete M122 eaton blower. (07-12)
Swap the blower with something else, like a VMP-TVS-2300 gen-2. Eats up way less hp off the crank (free hp), and runs a helluva lot cooler, pre-ic.
A local buddy traded in his 08 GT-500 vert.... on a 14 GT-500 vert. Difference was like night + day. The 07-10 GT-500's were heavy brutes. 3950 lbs for the coupe...and 4050 lbs for the vert.