MSD 31159 8.5mm Super Conductor Spark Plug Wire Set

Good quality wires, the center core looks strong and well built. The installation is not as beautiful and easy as stated in the manual. Golden terminals are not so good, they tend to break at the flexion area when used with 90 degree boots (I broke 2 of them). Crimping tool is unnecessarily difficult to use (I had to cut the plastic edge in both parts of the tool to center it in the bench vice to make smooth crimps) and it feels fragile.

Was disappointed with these wires because they did not come assembled. It was purchased for a 2.2 S10 and came with a bag of boot ends. And had instructions on how to crimp terminals to the wires. I got the task accomplished but it's kind of disappointing that they don't come fully assembled ready to install like other MSD wires I have purchased in the past. Also the wires were almost too short had to Route One of Them over the valve cover.

i didnt suspect the quality to be better then the description the shipping was extremely fast came with instructions another big plus.Installed on my 1998 pontiac sunfire along with a bunch of other msd parts.msd has amazing quality for its price and youll get more then what you pay for in performance!! will keep buying from this seller 2 thumbs up!!! keep up the quality.any true car lover should always select msd for the price and quality

GREAT PRODUCT BUT WISH IT SAID OR HIGHLIGHTED THAT YOU HAVE TO PUT THEM TOGETHER WITH CRIMPERS ! WONT BE BUYING THESE AGAIN IF I HAVE TO FINISH THE JOB FOR THAT AMOUNT OF MONEY

I received this today and it is for a 4 cylinder engine! And amazon showed it as compatible with my 6 cylinder jeep! And you have to put the ends on the wires! Wish I could give it 0 stars!!!

First order didn't show up second order was missing parts. Im not sure what happened but msd was always great

These are a huge upgrade over stock wires