Firstly, don't listen to the whining about hyper-flashing, the description specifically states that most cars need a resistor to prevent hyper-flashing. I used 60W 6 ohm resistors in my 2007 Cobalt SS and everything works as expected. The switch back feature is obviously what I want when I want it, but I've tried it and it's actually very nice! The bulbs are bright enough to give a bit of extra sidelight, and the turn signals aren't overwhelmed by my LED headlights. Highly recommended!
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