I dont think Eric Teoh VS is a good VS.. For the first batch maybe... but when I purchased, The fuse using actually not a Fuse... Just a Copper wire and covered by aquarium Plastic cover. WTF... So I dont think Eric Teoh is a honest Seller。 and dont think the VS can give you some much different for your car. It will help, but maybe you cant feel anything.

All fuse in the world are made from a conductor material(zink, copper, silver, etc).

I made my own rating of fuse using copper line such that it conduct better than zink mostly used. And the reason I solder it inline because to secure it 100% and it won't loose that impact performance.

And the tube outside is glass which is identical glass tube using on agu fuse not what aquarium pipe as people claim. FYI aquarium pipe is plastic.

Because vs is highly rely on the car wiring (ground and positive) to work properly, I just wish if the vs doesn't work for somebody, pls schedule with me a time and I will check it out why, and also replacement will be given if found defective.