I'm about to do a tune up on my 98 GT. I'm going to purchase the ford racing wires and the basic motorcraft plugs-my question is about the coils-I was looking at the screaming demons-are they worth buying or should I just do the stock replacement ?? I can't afford the MSD or accel so are the demons a good choice? The price seems awesome and if they perform as well as they say they seem good . Just a few words of wisdom from someone would be cool. Thanks

 

I've always been told OEM is best.

 

Yup same here, I have ford racing wires and motorcraft plugs and stock coil on my 94gt

 

Agree with the two above the reason the stock is better is because ford makes them specifically for spark intensity needed to ignite the fuel air mixture. MSD, accel, and any others make the just to fit the vehicle and mass produce the internals. Hope this helps