Question about "blow off valve" sound
I just recently installed the Code 3 phelonic spacers a month ago and the Needswings intake a good 6 or 7 months ago and everything up until yesterday looked and sounded to be fine, when I heard something I never heard before. I was just reving my car after a 20 minute drive and I heard what sounded exactly like a quiet blow off vavle off of a turbo car. I had my brother come out and rev the car for me while I stood over the engine bay and I noticed that the sound seemed to be coming from the Needswings intake, towards where the filter was installed under the grille. I'm wondering if this is normal or if in my struggle to install the Code 3 phelonic spacers around the Needswings intake I might have shaken something loose. Or maybe my ears are playing tricks on me and the sound is actually coming from the intake manifolds, a possible cause of not getting the proper seal when installing the gaskets. I have reved the engine before with the phelonic spacers on it and I dont recall ever hearing that sound before thats why I'm asking. What do you guys think?
Brandon