There are few types of specification. Impreza WRX (lower spec), Impreza WRX STI. WRX without Brembo caliper, different interior and lower bhp compares WRX STI. Mines is WRX STI. And some limited edition like WRX STI Spec C, S203, Spec C RAR. TQ.
My RS200 (auto) lost a bit of power lately, especially when coming out of corners and overtaking. While cruising is not much of a problem, when accelerating always semput a bit.