OTR:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180351048190&ssPageName=MERCOSI_VI_ROSI_PR4_PCN_BIX_Stores&refitem=350195306660&itemcount=4&refwidgetloc=closed_view_item&refwidgettype=osi_widget&_trksid=p284.m185&_trkparms=algo%3DSI%26its%3DI%26itu%3DUCI%26otn%3D 4%26ps%3D4

RADIATOR COVERS:
http://cgi.ebay.com.au/OTR-SIDE-RADIATOR-COVERS-VE-V6-ALLOYTEC-COMMODORE_W0QQitemZ350218372974QQcmdZViewItemQQptZ AU_Car_Parts_Accessories?hash=item518aa4476e&_trksid=p4634.c0.m14.l1262

NM (NEEDS A TUNE) CHECK THIS OUT:

http://forums.justcommodores.com.au/v6-development-modification/102102-otr-cai-w-maf-idle-surging-issues-2004-vz-sv6-auto.html

From reading the thread it doesn't look like a good option.

a) needs a tune - there are no tunes available for our ECM
b) MAF is too close to the throttle body causing air to bypass the MAF

-Dennis-