mac headers

Hey guys. I'm ready to start shopping for some long tube headers for my 07 GT. I've read and heard mostly good things about the Kook's LT's with the only downside being the price. On the other hand I like the look and sound of the MAC's and they're half or even a third the price of Kook's but...

i'll be purchasing a set of mac long tube's in a few weeks.:bounce2: i was wondering what all i need to buy besides the headers themselves. thanks for any help.