Throttle Body Inlets 72mm Throttle BodyApplication: K Tuned 72mm Throttle Bodies Interchangeable inlets for K Tuned Throttle Bodies. Easily swap out the standard barb fitting to a V Band or Vanjen fitting in 3". NO MORE WELDING THROTTLE BODIES, just remove the 4 bolts holding the standard inlet and replace it with the new inlet of your choice. You will reuse the o ring supplied with your throttle body. Dimensions: Outer Diameters Clamp Size V Band Clamp VanJen Clamp 3in 3. 81in 3. 28in