I put HID LED turn signals on mine. You'll have to use load equalizers since honda intigrated the flasher unit into the instrument cluster so you can't replace it.
Here's where I got mine from
http://autolumination.com/equalizers.htm
You'll want 2 of these: One on each side covers front and rear.
3 OHM DELUXE ALUMINUM
50 Watt LED Load Equalizers
The insallation Diagram link is right below the equalizers
Here is where I installed mine.
Passengers side, on the strut housing.
Drivers side, in the chanel in front of the battery below the air intake you'll have to take the stock intake off to get to it.
Load equalizers get very hot very fast so they needed to be somewhere they could get air and away from anything plastic as they will melt plastic. And they will burn you if you touch them after just a few bulb flashes.
That will make your turn signals flash at the normal rate.