Kenshinx, you need to make sure that these are the correct headers for your car. There are two types of PreFace lift headers. PRE MAR 2003 engines/headers have no facility for EGR systems. POST MAR 2003 engines do have ports in the head for EGR, and thus our AUDM/SADM cars which never ran EGR have blanking plates on our headers to cover the ports. to check which headers you need, feel accross the top of your headers on your engine (while cool) and you will, or wont, be able to feel 4 "tabs" poking out of the head sheeld against the Head. If you have the tabs... you need the EGR compatible headers, if you Dont, then you can use either types of headers. I only know this... as my Sportivo was a PRE MAR Build.