Lot's of opinions here. I've discovered over the years that you truly get what you pay for. Many have bought cheaper headlight replacements and while the output may have improved, the cheaper stuff doesn't perform nearly as well as a better quality product- regardless of the wattages, etc.
The factory lights are worse than pathetic- they are dangerous!
For my money, I always come back to the IPF housings. I run them with the new generation Fat Boy Bulbs and they are an amazing difference over stock!:clap:
If I'm choosing stock lights and a harness or better lights and stock harness to start, I would definitely go with the better lights first! Add a harness later- unless you're gonna run some really high wattage bulbs- then get the harness at the same time. The IPF 4x41 bulbs work fine on the stock harness and even better with a good harness.
Here's a couple of pics of an IPF light on the drivers side and a stock light on the pass side- STOCK harness:
Low beam:
High Beam:
Pics aren't that great, but you get the idea. The difference is HUGE!
I really like the beam pattern on the IPF's. Sharp cut-off on top allows a lot of light on the road without blinding on coming traffic.
I run a set of IPF 968 driving lights on my BullBar aimed out more to the sides. Where the headlight pattern drops off, they pick back up. Awesome, wide display that lights up ditches, etc, so I can see those deer at night...