Why do people prefer one over the other? Is it purely cosmetic preference? thanks.

 

I prefer closed because I coat my studs with anti-seize, and the closed protects them from sand, dirt, and all that crap that is kicked up at the track for when i swap tires around 2 or 3 times in an event (and for any off road excursions )

 

Thanks.

Other opinions?

 

I like closed, my last car i used open and the inside of them would get rusty and didnt look good at all.

 

Generally,
If you have longer wheel studs, you will need to run open ended studs.
However there are racing lug nuts that are longer to cap over the longer studs.

Open ended studs are generally smaller and slightly lighter due to less material used to make them.

Closed nuts show more color as well....if you have colored lug nuts.

Personal preference really.

 

OT...what about the extended vs non-extended ones? What's the diff?