1) Took out the back seats
2) replaced the front seats with racing seats
3) replaced all the seats with racing seats
4) replaced the body kit, hood, fenders & trunk with carbon fiber

Thanks in advance. Just trying to figure out what upgrades are worth the cost.

 

that would depend on what seats you have now.

 

or u could just become anorexic get down to about 56 pounds and still have all the comfort u need

 

Maybe 100lbs It's not going to be any greater than the difference of having a full tank of gas and being low on gas...

 

carbon fiber is so expensive it's probably not worth the cost unless you have a lot of money to throw around. You can replace the dash with carbon fiber too. I'd say you might be able to knock a good few pounds off the car, and maybe you'll get a small increase in performance, but at what cost to your comfort and wallet. removing stock items might void warranty and reduce your resale value later.

 

#4 on your list isn't worth doing. Carbon fiber isn't going to lower the weight much vs the stock parts.

If you have a GT package, the stock seats are pretty hefty, but like ike said, thats less than what you get from full tank of gas vs low gas.

 

Dont do it. I have friends that have 3G's NSX and EVO's that are gutted. It dont mean **** if you dont have the HP to put down. Importtuner did the same thing with a 350Z all that improved was the breaking big deal.

 

Yes big deal, arguably the most important, and hardest to master part of performance driving was improved.

 

https://www.rx8club.com/rx-8-racing-25/weight-stock-rx8-parts-81791/

Got to love those sticky threads

 

Not mentioned by others, but the rear seats won't save you much, maybe 20 lbs total?