Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Plugs and wires

I've got a set of BLUE Ford MotorSport Wires and the Bosch Platinum +4s, and my engine runs FINE.
I haven't had any problems with the plugs, as others have,
because I installed them in a COLD engine, used AntiSeize Compound on all of them,
and torqued them to the proper yield when I installed them.

I also used lots of silicone grease on the boots of the wires, on BOTH ends.

The Engine idles and accelerates smoother with the +4s then the original plugs did.

But this is with my car.
Not every Contour works well with them, from what I've heard.
The +4s also come with a money back guarantee.
If you don't like them, you send them back to Bosch and you get your money back.