Hey guys, so i got Invidia HFCs installed and after driving the car about 80 miles the check engine light came up
I dunno what the problem is since the light didnt show up right after the installation and before those 80 miles that were put on the HFCs.
Also every time i slow down i notice a weird hissing sound. I cant hear this with windows up, only down and at speeds below 30 mph.
So if anyone can address this problem i would really appreciate it. I personally think its faulty installation. I dunno help me out