Yes it does it does not need to be added
2.7 gl.hb/263
stock is 17''
its the cable attached to the stock intake.
remove the top plastic on the right side of the engine and you will the the stock intake, all you need to do is unclip the box and you will see the filter.
The stock rim size is 17" and the tire size is is 215/45/17 =]
you have to putt the dash apart starting with the shifter knob, have fun.
if your asking if you can put subwoofers on the stock radio then no you have to have an aftermarket radio
remove radio from a grand marquis 2003
I have a 2003 all you have to do is pull on the air speed knob, heat/cold knob, and the same with the direction of the air flow knob pull towards you till they pull off. From there you can pull the bottem of the trim towards you and it will snap off you can then remove the radio and add an aftermarkrt one. TheOmega
remove brake seats then remove the brake knuckles , then you'll need a wheel hub puller or a slide hammer.
to the right in the engine hiding in a box the stock air intake. The intake box unclips.