Hee hee, sorry. It's 1sty's kit. Just PM him and talk to him. I got mine for $100, but if you have some know how you can make your own. I just wanted mine fast and kinda wasted my money. Now, that's not a hit on 1sty in any way. The quality and finish of these wires are PERFECT! The holes are all drilled to where they need to be and all the terminals are attached perfectly. I could probably have saved $20-$40 doing it myself, but that's after shipping and labor, so...
As for a difference, there's really nothing as far as speed goes, but it does idle better and get better throttle response. I know from my friends car that it also keeps the lights from dimming when the bass hits. Basically, this is something you get if you wanna do sound stuff. There are much better performance mods you can do for the money.