Is there a way to keep rocks and pebbles from piling up in the diffuser?

I was thinking of using a universal rubber molding between the diffuser and the body, but didn't think it would hold up.

Anybody have any suggestions?

 

Common issue with the j's diffuser, after a while it transforms into a big children's sandbox

You could try make a molding between the body/diffuser but i dont know if thats gonna affect the aerodynamics alot...

 

I was just talking to a previous owner about this. He called it a "rock collector" and sold it off.

 

lol yea my dad use to make fun of me all the time about it. eventually sold it.