I have used some 80/100w in my car on my 1992 in the 9004 bulb size.

I still have them. The lights were brighter, and not that much over the stock 55w bulbs.

I figured better to be safe and not risk melting anything so I went back to stock.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U