Funnel designed to twist on just like the oil cap. Helps for a nice clean oil change without spilling all over your engine cover. Tested and confirm to fit Ford F150 Ecoboost motors and Mustang Ecoboost.
 
These are printed in PLA-HT (High Temp) material. These are 3D printed in house and made to order. These take several hours to create so please factor in a day or two for order processing.