K33pinitp0si

Hey guys what's up I drive and 07 z 6speed, I recently been hearing a slight tick sound coming from engine bay area. The tick is not consistent while driving, it happens when I push the gas pedal just to rev it some, it's coming more from my drivers side sounds like maybe an small exhaust manifold crack ? When I drive in high gear at low rpms I can hear a ticking/flutter sound to a certain point, sound goes away after reaching high rpms. I'm not losing no noticeable power and no CEL. My buddy owns a exhaust fabrication shop who made my exhaust we currently know there is no exhaust leaks underneath checked a million times. I'm running a straight pipe with two resonators, if anyone has some insight or had similar issue please let me know so it can help me diagnose this annoying sound thanks!

dkmura

iTrader: (64)

Could it be some detonation at low RPMs and higher gears? What grade and type of fuel are you using?

K33pinitp0si

I've been using 93 octane, it's weird I can hear it on a cold start but it will dicipate and clear up, only hear it when I feather the gas. Has anyone heard of the HR manifolds cracking or bolts getting loose ? I'm leaning towards that my car is decently low and I smack my exhaust from time to time