MTEC Super White 2X or the PIAA Xtreme Force h4 bulbs? I want the closest to the stock hids and match up good. Which are better, there is a big price difference here. Is there any difference besides one is 4350k temp and other is 4700k?

 

in my experiences with piaa h4 xtreme force, i would say that they are too blue for the stock HIDs.

 

My MTECs matched better than the PIAAs I have now. My PIAAs have lasted a lot longer though.