I am about to throw on some 19" Rays and was wondering what's the lightest/strongest lug nut that will work for these wheels and is it worth it over the stock ones?

 

Most aftermarket lug nuts are for looks. At most you will remove maybe 1/4 pound of rotational weight that were so close to the center of the rotation you wouldn't notice. Basically, buy them for looks or theft deterrent or stick with stock.

 

After having a set of Rays extended lug nuts for years and switching to Kics R40 Revos, the Kics are much better lug nuts. I was always scared I'd strip my lug nuts with the Rays since the material is so soft.

I'd recommend getting steel lug nuts.

 

How about the muteki lugs

 

I've heard Mutekis are alright. I've only personally had experience with some generic Gorilla lug nuts, Rays extended, and the Project Kics I have now.

 

The strongest lug nuts you can get are the titanium one which are hella expensive. The steel ones don't strip as easy like the aluminum ones (Rays,Work,etc.). The Rays and Work one will fade over time and are light because the material are so thin. Gorilla are cheap and everyone have them. Muteki are good for the price. I would go with some Project Kics next or Volk formula ones.

 

Titanium lug nuts are ridiculously expensive. On a street car there really isn't a need for them in my opinion.