Certain LED conversion kit bulbs might exceed the dimensions of the OEM headlight dust cap. One option is to create a hole in the plastic cap, enabling the LED bulb cooling fan to protrude out of it. Alternatively, leaving the cap off risks water and debris ingress. Our recommended approach involves employing after-market rubber dust caps. These are pliable, adjustable, and some come with pre-made holes, streamlining your LED conversion kit installation process.