Should I go Longtube?

I have a 99 GT with a vortech blower, and all I have exhaust wise is a mac cat back. I want to buy some mac longtubes with a matching o/r prochamber. I want to louden it up and gain some power.
Here's my dilemma: Where I live (Connecticut) we have to get emission tested every 2 years, they plug it into a computer, they don't snif. I have to get it tested in the next couple weeks so if I get the headers, I'll be alright for 2 years. I've read a lot about doing the install and it pretty much sounds like a PITA. I'm confident that I could do it as I installed my vortech in my garage, but is it really so horrible a job that I really wouldn't want to do it every 2 years? I figure I'll probably own the car another 6 or so years, so that's only 2 or 3 installs.
I really want to get them, but I want to "keep it real" too.
What are you guys' thoughts on this?
Any input is appreciated

Thanks

Well, I think for now I'll buy the o/r prochamber then sometime within the next 2 years I'll either buy a catted pipe, change back to stock for emissions, or sell the car.

I'm really looking for a smooth, rumbly tone that's definitely not obnoxiously loud. I'd accomplish this with the o/r prochamber I think. But would I be cheating myself by saving a hundred bucks and going with just the mac o/r h-pipe? How significant is the difference in power and sound?

Thanks