GM Performance Intake RPM Range??

[kend]

I'm looking at getting a GM Performance Parts intake, 12496822, but I need to know the rpm range before I drop that much cash on it. I couldn't find anything definitive using Google and the GMPP catalog doesn't say, any ideas?

[mytmouz]

I dunno, but I do have one I got in trade that I don't plan on using...

[kend]

FYI...according to GM the rpm range is 3500-8000