This is a box we make called the FB-2 it fits on the floor of all the Porsche's that share sheet metal with the Boxter. It functions as a passenger side footrest and raises the passenger's legroom up to about where pedals would be if they had pedals on that side. It only works on left hand drive cars.
 "This is the floor box view from the front with grill off.")
The grill is 16ga steel perf. The mounting baffle is recessed in almost 1" from the back of the grill so we can accomodate pretty long throw woofs. The cutout is for a standard stamped frame 8 with about 4" depth. The box material is 3-4 layers of 1.5oz mat in polyester resin, engineered with no flat sides to maximize material stiffness.
 "Front view with grill on.")
This is what it looks like out of the car. We sell it "bare" with only the grill so we can sell it cheap. If you want we can supply it with special screws for plastic, terminal cup, wire, damping material, woofer and mounting screws.
 "This is what it looks like in the car without the carpeting.")
Here it is in the car. This happens to be a GT-2 but it fits the same in Boxter, 996, 997 and Cayman. This gets covered with original Porsche carpet and when the floor mat goes over it disappears.