car goes straight and normal. It was dark outside and two potholes on the road were pretty wide, thats the piece that hit the flat ground between two potholes so hard, but only scratch on the plate and bar itself, should i worry about it?

 

anyone knows whats the name of that bar?

 

swaybar

 

ya its your swaybar... and its pretty beefy... so you should be alright... as long as the car drives straight

 

is it aftermarket or our car has it originally? btw i have 04 x sedan

 

original equipment.

 

All cars come with them, you can get aftermarket upgraded ones.

 

is there possibility that hitting it hard would damaged the control arm?