Well I have a DB8 I am looking to make a air duct for my JDM bumper.They do make one but it is for the passenger side of the bumper ... I need some tips on making a mold so i can make a duct for the driver side.I have worked with fiberglass in the past just never made anytype of mold

 

well first off you have to make the part you want to make from the mold, then make a mold from that. That is called your plug.

check out http://www.racingcomposites.net

 

thank you