Ok so last night i installed the HKS super mega flow intake, pettit stock mount and Greddy hard pipes... this morning i take it out for a drive and notice a new noise coming from the engine bay... but i have trouble isolating it.
cant hear it at low idle then it appears at about 2300 rpms then is gone by 2600... it sounds like...damn i dont know how to explain it...best description would be that it sounds like a baseball card mounted on the front fork of a bike slappin the spokes...ya its a terrible description but thats the only thing i can relate it to... ive checked all the hoses and belts and nothing is rubbing... fans both have clearance and im at a loss... any ideas?

 

also i just noticed a drop in oil pressure

 

how much of a drop of oil pressure? did you check your turbos for shaft play or wobble? perhaps you can take a video and post it.

 

Maybe the airpump? (if you have one, that is )

 

Air Pump

 

defly airpump...put that weird little screen HKS provided over the airpump... all better now