Anti roll bar

I am looking for a rear anti roll bar. I was about to purchase one from Ultra Racing but I cannot for the love of God find one anywhere for sale anymore. Have they stopped making them or something?

On the topic of anti roll bar, I would also like to purchase an uprated front one but I haven't been able to see one in stock anywhere either.
At least, I know that a couple of months ago, I could've gotten a rear one. Pretty sure there are none left for the front, but maybe someone here knows better.
Thanks!

The Eibach ARB kits and White line haven't been available for quite a while now so the only off the shelf options are Ultra Racing.
For front you could look for a Dedra, from memory they're a thicker diameter.

Just remember with the ultra racing rear arm you'll have to pack out the brackets due to them being oversized for the are

Cheers Jamie