common sense applies here more than anything.
How about the exhaust noise guys? can you get in trouble because of a loud exhaust?
But its the USA?
That's plenty legal. But the above picture still has all the sound deadening tar in it. If you remove that (30 pounds of dry ice, hammer, scraper) you save 18 pounds. You can strip pretty much as much as you want in the interior, so long as you keep the essentials.
But, there are a lot of other places on the car where you can save weight. I would start in this order- remove power steering (if it's there), remove squirter reservoir, lightweight battery like the odyssey pc545, wheels, light weight seats, CF or fiberglass hood, exhaust components, and if you're hardcore the firewall mat.
Adding power makes the car go faster, but saving weight makes the car save gas, go faster, stop faster, and handle better. But only go as extreme as reasonable with this being a street car.
the cage and the harness could get you into some trouble with local police depending on how its setup...
thanks, i will take your advise in consideration, i will start in your order, some i will wait until i get money like the hood, wheels, seats
im thinking second about the cage, i dont think im getting the cage unless i turn it into a track car, i think the seats and 5 point harness is good enough,
Make sure to mount your 5 point harness properly no more than a 15 degree angle when comming out the back over your shoulders. Also make sure to retain your OEM seatbelts, its a pain having to buckle up in a 5point everytime you want to run to the store and its almost impossible to get your gangster lean on or hold hands with a girl...