detail on how emulators work: https://www.racetech.com/page/title/e...
how to cut preload spacers: http://sonicsprings.com/catalog/dampe...
svrider discussion on 6 holes vs 4 big holes: https://www.svrider.com/threads/3-8-d...

diy-ed damper rods: https://www.mad8v.com/products/damper...