then I assume once I install the 552 on a USA GROM when I press the right/left turn signal switch straight down it wall activate the 4 way blinker system like for emergency like I do on my 1999 ZX6r or do I have to replace the blinker switch on the handle bar also.For the Thai spec blinkers... View attachment 3410 you need the 552 flasher. The flasher is located behind the head light shroud... View attachment 3411 View attachment 3412 simply unplug the stock flasher and plug in the new 552 flasher then put everything back together.