I don't have Yellow Fogs. Can the stock Fogs bulbs be replaced on the 01 Pathy too? I used to have a Brushguard on the frontend with PIAA Fogs. They were fantastic. The brushguard rusted - I took it off. I may replace with a smaller "U" shaped guard and re-install the PIAAs. The Brushguard did contribute to drag - you could feel it at highway speeds.