LandToy80 made a comment the other day about Bosch plug wires. He said that they fall apart when removing them. This got me thinking since I have those wires. I recently changed out my spark plugs which was the first time I have had the Bosch wires off since I put them on. After that I noticed a change when starting the truck. It seemed to take longer to fire and ran rough for the first few seconds then it was fine after that. When I got the truck it had Jacobs 8mil performance wires. The FSM says to check the resistance of your wires before replacing. For fun I check both sets. Bosch 12-14 Jacobs 5-6 Needless to say the Jacobs are back in and it starts perfect and idles smoother. Anybody ever check what the resistance is on OEM?