This is a PRO-RC product:
Made for the TLR 8ight X - TLR 8ight XE - TLR 8ight X elite line of 8th scale parts
Material - 6061 Aluminum and anodized black.
 
This is a option part, which has 2 adjustments further back from stock. These positions make the car less agressive coming into the corner and help the car carry more speed mid corner and exiting the corner. 
 
Note: must dremel approx. 3mm of plastic from the steering rack when using the optional holes
 
NOTE: We did a running change to this part during our last order, we eliminated the front hole position which no one ever uses. the main product picture is the newer design and the other picutes show the original version.