Pingywon, No resistor needed for these bulbs ( blink fast, but work fine). I would just send superbrightled.com a email or call on the fit question , they are good at getting back fast.
So I also switched to LED bulb indicators and HOLY S#!% are they BRIGHT! I bought for of them and here is what I have learned. If you replace ONE (front or back - you will get the fast/hyper blink. IF you replace both (front AND back) the hyper blink goes away and you get a regular blink. The trade off is that the green indicator on your dahs doesnt blink anymore - its just solid on. (who cares!)
Here is a quick video of the front stock and the back LED = hyperblink
Here is a video once I had the front and back done on the left side. So right side is stock and left side is LED. With the front and back done on the left side there is no hyper blink
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