I just changed out my stock turn signal bulbs in my headlights with LED's on my 05 and now the turn signals flash really fast! Is there any way to slow down the flash with the LED bulbs??

 

One of these Electronic LED flasher relays will fix the problem;
electronic led flasher, buy and sell Parts Accessories on eBay Motors

Turn signal issues with LED bulbs

LED brake/tail lamps will not flash with thermal flasher units due to their extremely low current draw. Also, with stock flasher units, the turn signals may flash faster than normal (Hyper-Flash). These installations will require an electronic flasher unit available at your auto parts store. Try to find flashers designed to work with LED bulbs, they will say "LED compatible". Often HEAVY DUTY flashers will also work with LED bulbs.