What about a software update? I noticed that SMA is pushing three performance kits. The stage 2 kit includes intake, headers, and exhaust. The stage 3 kit includes the same as stage 2 but adds what they call "Computer Software Upgrade". The stage 2 kit is supposed to add 34hp and the stage 3 kit adds 58hp. That's an additional 24hp! Do any of you know what this computer upgrade is/involves? I asked the service manager at the hummer dealership if I needed any computer reprogramming and he said no that the computer auto adjusts to the new intake/exhaust. What do you people know about this?
Thanks,
Peter
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