I apologize if this seems like thread hijacking, but I'm genuinely interested in this after just ripping my engine out yesterday for a full rebuild -- are there any downfalls to the lightened flywheel? My general thought process is if it's better, why wasn't it like that OEM? Or is it the more expensive aluminum material? Just trying to fully understand if it's something I want to add to my car. I need to research it further, but I know you guys have a ton of experience with the 2ZZ and Eliges. Thanks!!