Headlight conversion kit recommendations
 

OP please familiarize yourself with the forum structure, organization and rules before you start any more new threads. That process will insure you post in the appropriate places. The header of this sub-forum specifically states in big, red letters "No car questions", so I've moved it to the appropriate place.

There is no conversion kit that actually works. You can retrofit your reflector headlights but that involves some custom work to get a huge improvement in output.

LED/HID drop in bulbs in halogen housings just create more glare and less output

Welcome to the G35 Driver Forums Mechole!
 

Not knowing if you have a coupe or sedan or what year it's not possible to give you a correct answer! You might try using our a search function but all you may find is aftermarket headlight poor quality, not worth the $$!
Gary