Nope, not the same line in the rule book meaning in the classification table for SP, if they were together and eleigible they'd be listed like:
DSP: Impeza 2.2L, 2.5
But they're listed something like this:
DSP: Impreza 2.2L
DSP: Impreza 2.5
1) HS
B) STS or higher
III) STX or SM
--kC