[FRSBRZGT86FAN]

Originally Posted by RallySport Direct

My understanding is that the engineers designed the crash beam in the door to also act as a chassis brace when you use these door stabilizers. So by installing these you are essentially making the chassis more rigid which should help with handling and feel of the car. I think mods like this become more apparent and noticeable when you have suspension mods, sticky tires, bushings etc..

Hope this helps! And thanks for the Writeup as well, this is an item I will install on my car one day lol.

Thanks,
Rick

Thanks for that I found an explanation from another trd website
"The TRD Door Stabilizer helps stiffen the chassis of your BRZ, FR-S, or GT86 by sliding a spring loaded metal section behind the lock which grabs against a polymer based plastic piece on the door itself. This then pushes on the door and against the hinges which helps stiffens the chassis."

Pretty much what you said.