Are you referring to JD's Performance UCA's? If so, then yes, they are good. I've got the double adj. uppers on my car. No complaints, here. Dave is a great person to work with.
They are actually made by Granatelli Motorsports. They are a good product. I had the solid uppers and adj lowers in mine, but removed the lowers later on as they had spherical bushings -- which added too much ride harshness for my non-track street car. I did not know any better when I bought them, but learned quickly after the installation. To be clear, I give them the thumbs up -- but I had to go with a different LCA that had a poly bushing. The solid uppers are still in there, though.
They are actually made by Granatelli Motorsports. They are a good product. I had the solid uppers and adj lowers in mine, but removed the lowers later on as they had spherical bushings -- which added too much ride harshness for my non-track street car. I did not know any better when I bought them, but learned quickly after the installation. To be clear, I give them the thumbs up -- but I had to go with a different LCA that had a poly bushing. The solid uppers are still in there, though.
They are actually made by Granatelli Motorsports. They are a good product. I had the solid uppers and adj lowers in mine, but removed the lowers later on as they had spherical bushings -- which added too much ride harshness for my non-track street car. I did not know any better when I bought them, but learned quickly after the installation. To be clear, I give them the thumbs up -- but I had to go with a different LCA that had a poly bushing. The solid uppers are still in there, though.