You can make your own intake pretty nicely & cheap last I checked. I know if you have it apart and your good with a dremel or die grinder I am sure you could probably port the throttle body and the intake manifold/heads ifyou have it apart. If not...a custom exhaust sytem and headers...maybe 20-30 crank horsepower increase? Check these guys out for the 3.4 DOHC. They know their stuff.

Milzy Motorsports - American Muscle, Reborn