Ok, I'd like to get my order placed this weekend for the Hooker SuperComp longtube headers for my 2006 Mustang GT, but I just have a couple reservations before I make the plunge and get them. One, how much does it alter the exhaust tone? I've got stock exhaust except for a Borla axle-back and I absolutely LOVE the sound of my car, will the headers change the tone? Also, are LT headers legal for street cars? I'm using a catted H-pipe with them, so I assumed so, but I want to check before I shell out $1k on exhaust. Jegs has them listed as off-highway use only. Thanks for your help guys!

Vipernuge just installed his though so if you have questions about that specific brand he can help.
Eventually I will be able to talk the wife into it, but until then...