Alright guys, I just picked up an '07 WR450 and it is a beast. I freakin love it. So I have one question for you all. What is the best sounding aftermarket pipe out there. And by best sounding, I mean I want it to sound like a Bell Huey on recon in the bush. Example Here (need subwoofers): http://www.sounddogs.com/previews/25/mp3/214954_SOUNDDOGS_He.mp3 Okay, maybe not exactly like a Huey but I'm looking to put the 'Thump' back in Thumpers. I've been told Akrapovic pipes are good but I heard one (albeit over the internet) and it seemed to be more of a growl. Any other ideas? Thanks.