I was looking at parts for my car @ Ralitek and came across this and I wanted to see if anyone had some exp with it and what kind of improvement (if any) it gave.

does anyone have any info?

http://www.rallitek.com/hiinel.html

RalliTEK High Flow Intake Elbow

The factory intake includes a very restrictive silencer located in the right front fender. RalliTEK Intake Elbow replaces this silencer and offers a more direct flow into the factory airbox. Made of durable crosslink plastic alloy for longevity and a clean OE style appearance. A wise investment if you are looking for a quick and inexpensive upgrade that will not interfere with the stock integrity of your Subaru.

Fits: All WRX, STI, Forester XT, Baja Turbo, and Impreza 2.5i '05-'07

 

You answered your own question ~ it does just what you state and does it well. Drop a high performance panel filter and you are good to up to 300HP with the stock Torque Box. Don't forget to reset your ECU when you are finished...