Hey guys,

I noticed a cavitation type of sound coming from the front of the engine while I stopped and left the car running. I pulled my engine cover off on the spot to try to isolate the source but couldn't nail it down. Anyone hear anything like this? Attached are 2 vids, the sound I'm talking about is almost a random pattern... like someone is half assed playing pinball. Sound goes away with a rev, car feels strong. Oil level is fine (using Motul, changed a few weeks ago), oil temp fine, no codes, no shadow codes (except fuel pump plausibility). Recently noticed my lpfp is diving pretty low on a WOT run so I'm getting ready to replace that, otherwise no issues.

Mods are Mr.5 intake, NGK 1 step colder plugs, RB PCV valve, 50/50 E85 tune, VRSF FMIC. Boost control solenoids replaced with plugs a month or 2 ago.

First vid:




Second vid, from outside, easier to hear what I'm talking about:




Thanks for any input guys.