tuner or exhaust? which comes first?

[QuaZi ET Gremlin]

Hey guys,
I have a Cold Air Intake. I plan to get a new exhaust system, but I was wondering if it would make any difference if I waited to get the InTune until after I upgraded my exhaust, or if tuning my car now would still see the same benefits installing the exhaust upgrades afterwards as it would if I did exhaust first, then tuned it. I have a couple 2000+ mile road trips coming up over the next month and a half, I was planning on running the mileage booster tune on my 2006 magnum R/T AWD. I've never played with a tuner before, nor have I fiddled with exhausts, but like many I've seen join the LX family, I kinda caught the bug, so i'm just makin sure I do everything right as I proceed forward.

Thanks for any input u can provide!

[jkelly16]

You will enjoy the tuner much more than the exhaust. I'd go for it first.