Either the Heinous or Metco control arms are quality pieces and will give you a noticeable difference in handling and acceleration. Both are made of 6061 aluminum, both have polyurethane bushings and both have greaseable zerk fittings. It really just depends on what style you’d like.
Some like the understated and stealthy look which is why I run the black Heinous arms on both my cars. Others like the silver finish of the Metco pieces and honestly they do look amazing. Either way you go I can guarantee you’ll be happy with the outcome. I’ve never once had a customer contact me regretting the upgrade. There’s a reason the control arms are one of my top sellers!