welllll i dunno bout them being brighter but they look nicer.. I bought some polarg m4 side marker bulbs today and they look so much nicer with my clear side markers.. they match my headlightts a lot better than the crappy APC ones i had before.. now i just need to replace the 1157 ones in my corners. polarg also makes m6 which are high wattage ones like ur looking for (they're superwhite too) at autotoys.com and some other places..
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