The electronics are not all the same and the quality of the components can sometimes make a big difference in terms of performance. Rody Cheung, a member of the Hong Kong RC drift group has made a comparison video of a normal aftermarket capacitor and the Onisiki Hyper Booster Capacitor (#ONI4603). Let’s watch the video below to see the difference.
Super capacitor with specs matched perfectly for high powered brushless systems. This capacitor helps deal with voltage sag during hard acceleration, with very low internal resistance the charge/discharge rate is very high, making it perfect for a touring car or drifter! The maximum voltage which this cap can take is 9v, making it able to help with voltage spikes or use with HV batteries! Wrapped in an alumium case, ensuring proper cooling, resulting in consistent performance!
Source: onisiki