7. Installing the headers isn't difficult at all, but it can be frustrating and time-consuming to get to the fasteners to tighten or loosen them. Following the included instructions isn't hard but having a little know-how sure helps. Two things to remember when installing headers: They are hot so allow for ample cooling, and often the header bolts are tough to reach so having the right wobblies and socket extensions is necessary. Our headers went on in just under two hours and really spruced up the engine bay.