The subaru powered speedsters are from www.specialtyauto.com/PORSCHE.htm
Standard:
Subaru 2200cc (2.2L) 4 cylinder, fuel injected, water-cooled (137hp @ 5400rpm; 145 lb-ft Torque@4000 rpm; 87octane regular fuel)
165 hp (optional)
Subaru 2500cc (2.5L) SOHC or DOHC, fuel injected, water-cooled (165hp @ 5500rpm; 166 lb-ft Torque@4000 rpm; 87 octane regular fuel)
230 - 270 hp Turbo (optional)
Not yet available - coming soon