Can someone give me the history and development of the H-6 engine. Is the 3.0 in the 06-07 tribeca the same one that comes in the early-mid 2000 outback H-6. is the 3.0R the same but tuned differently? I know the 3.0 in the tribecas have variable valve on the intake but not exhaust, while the 3.6 has both. Too bad Subaru wouldnt put a turbo on one of their 6's and stuff it in the tribeca.