I started noticing that my car has a multiple random misfire. The only time I can say it does it consistently is when the car starts. After that it only does it 3/4 times per two hours of driving. My plugs are about 2 years old, new wires, I've had an intercooler installed for about 3 months and have been working bugs out ever since.
When it does misfire it only lasts for a few seconds.