Well about 15000 miles ago I bought the screamin demon coil pack, live wires and some brisk spark plugs.
And actually, I think I may have gained some power, Engine felt more peppy.(I have a mac shorty header, flex tube, ud pulleys, and the above). But 2 weeks ago my car died a horrible death that ended up costing me $175 for the new alternator and the cost of new focus sport wires to fix.
My alternator died and at the same time the coil pack melted itself....destroying the live wires... Has anyone else had this problem? Or even heard of this problem?