Discussion Starter · #1 ·
Other than the car running like @ss, are there any other, perhaps more subtle hints that a coil(s) may be failing? Also, what are some things to look for when inspecting them for faults? Lastly, of all the aftermarket OEM style replacements available are any better quality than others. Or are they actually all made by the same man. only labled with different brand names on them? Just looking to avoid CAT failures as it will be a while before I can do the header thing.