I recently bought a used Drag tubo kit for my 99 civic Si B16a. The kit is missing the fitting that needs to go into the oil pan for the return. I know the oil line is 10an but what diameter is need for my oil pan. Also what kind of fitting would work the best; 45 or 90 degree? Thanks for the help.

 

.5" 45degree push on will do it

 

Thanks b18prl