If you're paralleling new LEDs into an existing turn signal circuit (keeping incandescents in the loop), you will not have a "hyperblink" problem.yeah, I dealt with a similar thing on my Tacoma, definitely a good thing to consider to avoid the fast blinking.. LED's are preferable for the lower amp draw, but the goal is just to make brake and indicator lights for visible to other drivers so if their simple incandescent lights, so be it.