View Full Version : Montana PCM into a Grand Am?
04-16-2004, 04:24 PM
Has anyone done this I was curious on why the Montana or gm mini vans with the same engine as the grand am (3400) produce 185 Hp. it because they are tune differently?
04-16-2004, 04:27 PM
if i remember right its because the heads are different. whatever it is, its not the pcm.
The exhaust on the Montana is less restrictive , and the PCM isn't gonna work properly in a GA anyway . ( They're even different between GT and SE )
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