Ok, I finally did my installation. It took me less time than when I put my Typhoon in first time. Well, I don't have shop or power tools, so it takes some time and patient. I did everything, and It came out like this:
I feel better and comfortable with Z-tube&K&N Drop in filter. I got rid of the leaking sound from my Typhoon, and I my OME look back. I could here 'Psi' short nice sound when I WOT, and it sound nice even though it's not too loud. I feel more power in lower range and my engine doesn't shake anymore and sits on same RPM without moving down and up. So, I think I like this mod... It's great!!
Thank you for everyone's help on making me change to this combo... I appreciate your help~!

2004 IP everything 5AT/MOMO shift ****/Typhoon/PS2/Clear Corners/Blue Fog Lt/All white blue bulbs inside out except purple light under the door/Z-tube and K&N Drop in (on the way)

 

i get the whistle when i purposely shift at 3500 rpm