This is an aluminum bodied pressure chamber that is used for on road cars. It mounts on the pressure line that goes in-between the pipe and take lid. It will help in stabilizing back pressure in high speed sweepers, braking and acceleration.
This is a bag of SJG 4x10T F/H Titanium Screws (8pcs)
This is a bag of SJG 4x12T F/H Titanium Screws (8pcs)