Your welcome! I dug through the archives, and found the original header thread by WallyX5, whicy was my inspiration. He had posted a couple videos from his auto 3.0 with headers and stock exhaust. Sounded awesome. Here's the thread.
http://www.xoutpost.com/bmw-sav-foru...s-headers.html

what's not linked to the thread is a couple movies he did. You have to plug in these key words into youtube as I'm on my mobile and it won't show the link address in the app for youtub. Search "express lane tunnel" and "hwy 99 tunnel" both by wallyX5. Should give you a good idea of what to expect. Careful, though he has his E60 M5 and X5M stuff on there now. Don't won't to distract you.

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2005 X5 3.0, 6MT, Alpine White on Truffle Brown, Sport, Preim, and Cold Weather, Alpina Stainless Headers, AFe Intake, UUC SSK, OEM 87's, 3.64 Differential Swap,Performance Modified Euro 2 Tune, UUC LTW Flywheel and HD clutch, Bilstein B12 Suspension kit
Future mods ZHP/Schrick Cam Shaft upgrade, Operation code name:Doppelschrauben-Kompressor

Wife's Ride: 2011 e70 X5 351 M///Sport.

Also in the fold: 2004 X3 3.0, 6MT, Black Sapphire on Terracotta, port, Premium, Cold Weather.