The Scale Detail Engineering RR10 Bomber LS1 mounts between the existing shock towers by using longer hardware.
We recomend the same course plastic self tapping screws that are used in other parts of the Bomber chassis.
Standard M3 machine screws work fine, just keep in mind these are not threaded.
You can use just 2 shock tower screws (1 on each side) and the rear lower zip tie mounting tab if you like.
This tab should sit just above the chassis cross bar.
The LS1 is hollow and can fit a receiver.