However,.......
if you do any time of time attack or HPDE, rules may say that Fixed Bucket seats will need to be FIA approved....which only last 5 years.
Just something to think about for those that are going to pull their seats out.
I have done my research, and the cost vs weight loss...is better to stick with a stock interior, until you're ready to put LOTS of money into gutting the interior, roll bar, bucket seats, with seat back brace.