I picked up the PIAA's first and ordered the M4's the next day to see which ones were better. The PIAA's at the Nopi shop in ATL was $12.55. The M4's were from autodynamic.com which were only $6 plus shipping.

I had the PIAA's for a couple days and I have to say I am not satisfied with the light output these bulbs give off. I mean, they are better than the stock halogens but the color seems sort of like a weak blue. Not too nice.

The M4's I just put in and so far I can actually say that the M4's are brighter. The blue is darker and gives off a sort of purple color at night, which I love.

POLARG M4 PACKAGE:


PIAA PLATINUM SUPER WHITE (bulbs look like M4's. those are my stocks in the package):


POLARG M4:


PIAA PLATINUM SUPER WHITE


I'll post more pics at night.

 

that's good idea, post pics

yeah i don't like the piaa as much as the polarg. the polarg is brighter and whiter, whereas i have seen the piaa on rmmgs4 car that's darker and too blue imho

 

Just got done taking some pics at night. The M4's are brighter and more of a darker blue than the PIAA's. I got these bulbs because I was planning on purchasing 6000k's. As you can tell they don't really match up w/ the Silverstar Sylvannia's. I'm also going to go ahead and purchase some M6's to do another comparison.

M4'S AT NIGHT:

 

Also if you can notice -- on my driver's side parking light there is an *** load of condensation. The white blur that covers the bottom half of it is all condensation. Will silicon do the trick?

 

yeah nothing will really match with 6000k, even m6. i have the m4 and 6000k and from a distance it's pretty good actually

 

I'm using M6 for my parking lights. They don't really match the HID color, but they're brighter than M4.