[daktah]

so you want your brake lights to act like some 3rd brake / brake light bars do where they flash a bit then stay solid?
1) the only lights that can possibly hyperflash are the turn signals. the reason they hyperflash is because the flasher module is made for regular bulbs that draw a lot more power than leds, so when they detect low current draw they go into hyperflash mode.
2) unless you modify some sort of components the brake lights will never flash in any manner like turn signals.
take it from me, i only have 2 incandescent lights left on my car and they're my headlights and the only differences that happen are the brighter and richer color, the instant on/off of the lights, and hyperflashing turn signals. other than that its exactly the same.

 

[daktah]

so basically you want like the 3rd brake light in this video except you want the brake bulbs to do it instead

also your blinkers wont hyperflash with regular bulbs, only if you have led turn bulbs will which i dont think you said you have

 

[daktah]

thats what i thought. like i said just installing leds wont make your brakes flash, your brakes can not flash unless you modify your wiring with some component that makes flashing happen (dont ask me i have no idea). if they could flash then they would be flashing in the first place with regular bulbs.
the reason that those 3rd brakes flash is because while they are hooked up the the brake light line, the assembly has a circuit that makes them flash like that.
if you want brighter bulbs, i just changed my old leds with "plasma" style leds and they are sooo much brighter. if you check out my post with pictures youll see how good they look. the bases are white but the leds are colored. when you use white in a colored housing the color is dull and slightly dimmer than using the correctly colored bulb. for example, i used white leds in my front and back sidemarkers and now instead of the back being red and front being yellow they are now amber and orange respectively. not a big deal to me, but just so you know.