Hi Guys, Have a brand-spanka F6 sedan and was going to do all the big bolt-on mods but think I will wait a little while now, for warranty reasons. I now just want to do: a cat-back exhaust and XR8 Bottom airbox section and snorkel (greater intake diameter) *Does anyone believe that a tune will be require due to the increased air intake. Is it going to pop any codes? *I know you can get away with a catback and no tune, but I just thought the intake, in conjunction with the new exhaust may just tip it over the edge? I am only hoping to get a little throttle response and some noise out of this. Is there any actual power gain (not just the psychological gain...) Thanks!