New member - just got my hands on a 2009 MY10 Ralliart

Loving it but already wanting to mod it up.
I'm brand new when it comes to modding so just wanted to get some advice re: Sydney region
So i'm planning on getting the following done:
-Turbo Back Exhaust
-K&N Air Filter
-ECU Tune
-New OEM HID w/ DRL Lights
Can anyone recommend where to get these installed in Sydney (Im from the East but happy to drive wherever has the best pricing)? As well as maybe a rough price guide?
Have sourced vendors from various places around the net but have no clue who/where to go to for installation
Any help appreciated!
