Hey guys hope this is in the right spot I have a TF sedan and was wondering do I need to change anything in the car wiring etc to upgrade the standard headlights in the car, I don't mind the look of those blueish looking globes but not sure if these would lessen the light output. What are the better upgrade to go for with the least mods to the car itself bar the globes of corse lol cheers.

Basically for a simple globe replacement no you will not need to change wiring, however do not run over wattage globes, standard globes are around 55w globes, the over wattage ones are about 100w+ and the extra current will melt the factory wiring and plug after a while.

For something like HID which are a kit you need to install so not as simple as a bulb swap, yes wiring needs to change a little here and there. However HID's in a standard headlight is not recommend because the output of glare can be dangerous.

For after market globes Narva and Phillips do globes that are sold as something like (+120%) basically meaning these globes will put out say 100% more light and 20% whiter light. Narva used to do what they called +100% which was 80% more light and 20% whiter light.

Edit: Just did a search the best output globes from Narva are currently the "Plus 120" globes.
http://www.narva.com.au/products/browse/performance-globes#anchor4

The way globes work is they all have a lumen and kelvin rating, you cant have exceptionally high in both. The Kelvin is the temperature of the light so the colour, the lumen is how much light they output. If you look at something like the Arctic globes, they are much much whiter but you lose light output from them, still more than factory globes but still not as good as they should be.

Like peaandham said, the whiter/bluer you go, the more light output you lose.

I agree with peaandham again that a set of good Philips or Narva/Osram globes are the way to go. They're simply good quality replacement bulbs so no modification involved. They will make a noticeable difference to light output.