70mm Throttle Body Focus RS Mk2

Technical Data
 
70mm Throttle Body Focus RS Mk2
 
The OEM throttle body is only 65mm so the extra dimension allows for greater flow especially if the inlet manifold being used is port matched. The Elevate , Mountune, Anembo and Sitech manifolds are all known to have 70mm inlets so this should prove a smooth transition of gas flow and harmonise perfectly with the bigger throttle housing.