I have my sport lights wired so I have all four on low beam as well as high beam, haven't noticed an issue in the fog, maybe a difference in make of lights as to how they reflect the light. Defiantly a great upgrade!!!

 

I have been thinking about converting to sport lights too. Where is everyone finding the sport lights? From the dealer, or fleaBay? It would be great to get some feedback on an aftermarket one that is good quality and delivers good light with the relay setup. Anyone have suggestions?