Whats the most important aftermarket product for my Powerstroke?
Without a doubt, an EGT (exhaust gas temperature) gauge. This gauge, also known as a Pyrometer, measures the temperature of the exhaust in the left engine manifold before it gets to the turbo. The tips of the turbo blades begin to glow at 1275 degrees Fahrenheit. You can destroy your turbo and your engine by exceeding this temperature. With the right conditions (load weight, climbing grade, outside temperature, altitude and speed), you can exceed 1275 degrees with your stock truck. You can easily exceed 1275 degrees with aftermarket accessories such as programmers and performance chips. This is not as much of a concern if you don’t tow heavy loads, don’t modify your truck and aren’t a leadfoot.