Need to know what part this is

Rear h brace or carbing lower arm bar I think not sure

It is the A-Arm a fairly Hard to Damage Without Damaging Other Parts, Looks Like Hi-Pro Front Sway Bar and Maybe Poly Bushings, I went that Route with Also Bilstein Shocks then KYB's Also Did the Rear Bar and All the Poly Bushings including the Steering Cyl. I'll Tell Ya No More Lexus Ride The GS300 bounced Down the road, Hit a Cig. Butt in the Street and the CD Skipped to the Next Song, Was Great in Corners or on the track But For Smooth Street Ride Forget it, buy a Camaro or Mustang!