I stumbled across this link on a BMW forum and figured some of y'all might be interested in it. I know I'm going to do it!!

http://www.gearhack.com/myink/ViewPa...0Car%20Battery

 

Do it and see how it goes. I'm not sure about it though. Let us know the outcome and post some pictures when installed. Good luck with the project.

 

it sound nice but the problem is that those batteries will not last long in a regular car you will have to search an other battery with more power (amps) but is a nice idea if im not mistaken esmeril racing offers a light weight battery conversion and they recommend the odyssey

 

There are numerous threads on this forum from people who have actually done it and your link is not even an RX8 DIY thread

https://www.rx8club.com/series-i-do-yourself-forum-73/what-belongs-diy-forum-163653/

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