Originally Posted by RsA89

Yes I know there is a search feature. I tried and didnt find my answer. My question, is there a performance gain you can notice?
Hobbywing offers an upgrade, for their Esc they make.

From Hobbywing website
This capacitor module (/cappack) is for “upgrading” your car ESC. With this cappack, the start-up acceleration of your vehicle will be greatly improved. Besides, the great ripple current endurance significantly reduces the generated interference due to the rapid ON/OFF of the ESC power tube.