Thanks for all that gave me tips. After dealing with all the rusted parts, I finally have the EVO intake, the Maxspeed headers and muffler installed (needed a trip to the shop, but that's a whole other story).
I don't mind that 2500 rpm resonance much and the rest of the time it is much has much more Porsche growl. Unfortunately I didn't a dyno before I started, but I am at least going to get one now that it is done.
Chris