Interesting. Sub'd to see where this is going. Im going to obviously assume that this is for when the car is purely stationary (skimmed through your OP, not sure if you mentioned this).

Like lift on the move?

Yup, kinda like bags.

Not at all like a bag. Post 1 shows the bwm up in the air. These are jack stands using air to get the car off the ground for service.

Right, I figured

Sis you make any progress on these puppies yet?

Not yet. Doing single 3" side exit now along with cut gas tank in half. Friday ill be starting moonbeam rear fenders and getting wheels out another 45mm then finishing a flat bottom and rear diffuser, then maybe ill start them.

Giving the car some good winter loving then. Good luck on all that.