I purchased mine off of e-bay for about $100.

They did have a non-sequential option but I found that out after I purchased mine.

I have since come to really like the sequential, it just took a while for them to grow on me.

Install is really easy. Take out the old bulb, put in their deal to replace the bulb then replace the flasher under the dash. Took me maybe 30 minutes.

 

I put in the sequential taillights for my car, marketed as 5x brighter than stock. Mine has 230 LED's, 115 each side.

This company is who makes them and they were in mustang monthly. Great quality and pretty easy install. They're great!

http://www.mustangproject.com/Produc...9-2734f257fb46

it looks like they have ones for 64-66 that have 180 LED's, 90 per side. Its obviously more expensive but you can only imagine how much brighter. They have different ones though with different amounts of LED's for every year

 

I put the blue LED dash lights in my 68, what a difference. May have to look into the LED tailights.

 

i need to invest in some of those

what does sequential mean?

 

^it blinks in a 1-2-3 fashion from the inside to the outside when you put on your turn signal. There are animations on the mustangproject.com website