There are several discussions on installing resistors with the installation of the LEDs for the turn signals. I wanted to give my feedback on my mod.

I purchased from Diode Dynamics their turn signals; Front Cool White (6000K) and Amber HP24 and Rear XP80 bulbs with their resistor kits. I'm really lov'n the bulbs from DD and the switchback front bulbs are my favorites. I also installed the XML2 Fogs. They are all very bright. I love the look in the front which is all white. I really couldn't stand the hyperblinking. I got the DD resistors installed in the rear (pictured below). This fixed the hyperblinking but I wanted to find a solution to this that wasn't getting as hot. It was like touching fire within 10 minutes of continuous flashing. I don't leave my signal on that long but started to think about if I needed my hazards on for a longer period of time.

I found that the DD resistors were way too hot for my taste. I removed the DD resistors and went my own route. I found a replacement and thought I'd share. These are only warm to the touch. I mounted them in the rear of the trunk on each side.

I purchased from DigiKey 2 of these resistors and mounted them (4 photos below). I'm very happy with them. I've had them installed for a couple of weeks now.
FVT200-3.0-ND
RES CHAS MNT 3 OHM 5% 225W

 

Photo of the front of my car