These two brackets will lower the tall ZTK wing on the C7 ZR1 more like the low rise wing for everyday street use and while we made them, we were actually really surprised at how good it looked! These brackets are made of T6061 AL and are a direct replacement reusing the OEM hardware, finished in black anodizing. **Please note these are designed to work with only OEM GM mounts, brackets, wings etc. If you have a non factory wing kit, these will not work for you.