[2FastLX]

I think headers will definately help you out. They did for me.
But if I were you I'd step up to long tubes, which involves buying a new cross-over as well though.

So, you might do as 1BAD89 said and do something with your heads. Even if you can't afford a new set of aluminum heads you can sometimes find good deals on GT-40P's which would make a difference, especially if you port them.

With them you'd have to buy new headers anyway because the exhaust ports are different with these heads.

Oh, and on the MAS choice - I have a 76mm that I absolutely loved on my previous setup. It looked nice, and performed great.

And as far as people not liking it because it uses the stock electronics... why?? Would you rather run to a parts store and buy a new stock meter and rip the sensor off of it? Or send it to Pro-M and have them replace it? There's not much price difference either way. And it's not like the sensors go out all the time anyway. I've never had one go bad on me.