Airbox modding...

[mrltd]

The MAF's have different flanges, so you need the marauder MAF or if someone makes an adapter for it....

Yes, a computer tune is needed.

[GMQ2004]

For my wife's 2004 Grandma Marquis HPP:
I have a complete Marauder airbox, less MAF. Can I install the Marauder airbox and use the regular MAF until I can lay hands on a Marauder MAF?

Once I get the Marauder MAF installed, I understand that I'll need the computer updated... correct?

Thanx!