I was thinking of getting this and I was wondering how hard it is to install?

 

Very easy to install. Especially if you buy the special harness for your car. That was theres no cutting and soldering the MSD harness to the car's. All you need to do is wire up the ground and power wires. Plus they have an tach output incase you ever need to install a tach or shift light.

 

Does it come with an(or anyone know of any) install guide?

 

It was pretty easy to install. The hardest part is deciding where you going to mount your box. I have me down where the K&N filter sit, in that little well area. Some people place it on the wheel hump in the engine area. Wherever you place it, get the quick connect wire kit. That will save you a ton of time installing and troubleshooting.

 

It comes with a very accurate install guide. They have various set-ups in the guide and one of them includes our cars. It will give you the partnumber of the harness you'll need to make the installation even easier. If you don't already have it, its p/n 8876 for GM cars with dual coil connectors.

 

If you end up installing it on the drivers side front, you'll find that the +12V lead won't reach the bussbar. This will be the only splice you will end up making.
Good Luck!