upgrade

Hi all, I'm currently working on a website to document upgrades for the Mazdaspeed 3. https://www.mazdaspeedguide.com/ As a developer, this is passion project I wanted to build as I'm currently in the process of doing a major overhaul on my own Speed, after having a bone-stock car since new...

Not new to the platform by any means but I am having a hard time finding a solid answer in regard to upgraded axles. This portion is all background information ---------------------------------------------------------------- My '13 speed3 is CST4 turbo. Plus, of course, a whole plethora of...