I currently got my intake and testpipe installed and today was the first day that I was outside of the car while it was running. I cranked it up and got out to go get something out of the trunk. While i was back there i noticed that there were like.... not smoke... but it was a greyish smokelike stuff lol that was coming out both the exhaust. Is this normal?

 

completely normal

 

its normal if its cold outside and the car temperature has not reach the nominal operating temp.

 

normal

 

actually....a lot of smoke is normal....lol....

 

that's the first thing I thought when I saw this thread.