Hi, Update on rear passenger side noises.
My friend installed a car lift at his machine shop and told me I can use it anytime I needed to work on any of my vehicles, so guess what, up goes the Boxster
I removed all the plastic panels under the car and did a visual inspection to see if anything was loose and could be the cause for noises, the following is what I discovered.
1- There were 5 broken plastic brackets used for separating, holding and keeping hoses from rattling,
solution Tie-raps and foam pads.
2- There is a flimsy plate on the passenger side only about 10 inches above the spark plug coils that is held in place with 1 screw,
I tapped it with a screwdriver and couldn't believe the rattling noise it made, reason was it had bent downwards and was hitting the car chassis,
solution was to push it upwards about a 1/2 inch.
3-When hitting the right front tire there was a noise (ex.. metal to metal ) coming from the rack and pinion area, but when I held down on the rod coming out of the pinion Boot no more noise,
solution I have no idea, maybe someone here has an idea 
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4- All the protective plastic panels under the car could use some tightening up,
solution I used some self drilling 1/2 long screws and fastened them together where they join and overlap.
For the rest everything was as tight and solid as my honeymoon 
Oh almost forgot no loose screws 