The difference is that resisters are eliminating the biggest improvement of three led: you drop the power requirement 90% switching to led then you add a resistor to take ten times the power so the car thinks an inefficient bulb is still there. Makes no sense also they can be as hot as a soldering iron.

I put led in my rear turn signals and didn't code so they blink fast. I'm quite used to the fast blink and I like that I get three quick blinks for a quick lane change.

The proper way is to code out the test.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)