I have an injen short ram intake system right now and dont really want to spend another $70 just for the extension pipe from injen. Does anyone have a list of what parts i'd need exactly to make an extension of my own? Thanks!

Ya, a pipe... go to a local muffler shop, they should be able to help ya out. Shouldn't be more then like 20 bucks.
Nick
97RS

So just bring my car there and have them look at what bends and angles they'll need to make to place the filter in front of the bumper scoop??

dont waste your time/money the difference is barely noticable.
IMO the shorty is better, less bends.

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

Any "gain" you feel will be purely psychological. If you get 1 hp I'd be shocked. Save your money towards a real inake...aka...a turbo kit.