I got mine from here.

http://www.webelectricproducts.com/

But apparently, Americanmuscle sells the same thing too for about the same price.

I got the pre-wired harness, btw. I'm too lazy to deal with that splicing stuff lol

 

got mine on ebay and i love em, they were like 20 bucks, splice in but super easy to do. if youve ever installed a radio itd be easy for you. ive had em in for over a year, no problems yet

 

Ive always wanted to get them but just dont ever get around to it... and those who said it is an unnecessary and pointless mod, not quite true, studies have proven that a sequential flash like what you get with this set up is much more noticeable and grabs the attention of other drivers much more quickly than a traditional blinker, so basically its safer... and if it get you to use your signals thats an added plus haha

 

it is definately more noticeable. i have dark smoked taillights and the sequentials made a very noticeable difference. its not just the pattern that does it, but also the fact that all 3 bulbs work with the blinker apposed to the regular 2

 

Well thats a great arguement. Works for me! lol

I've changed my tune.