lhinojos

I just installed my injen intakes today and I noticed a few things. For one, the car takes a little more to start. Like a half a second longer starting almost like its struggling. The car was sitting outside for a while after I installed and it is pretty hot so maybe it was just that. Another thing was when I was letting the car warm up after install, I heard like a high pitch frequency noise. Is any of this something I should worry about? I have a 2012 base and the intake was for an 09. At least that's what the box said. Thanks in advance for any replies

-Mario