Ok I'm completely lost and so is my service department on this problem so hopefully someone has an idea on here about it. For the past couple of months once my car is warmed up, a sound almost like a ringing of a tambourine is happening when I hit right around 2900 rpm. It happens in every gear but only happens when the car is moving. I can't push the gas in while in neutral and replicate it. I only have an axle back exhaust and that has been completely checked over by the shop that put it in.
Any insight on this would be greatly appreciated because until it's fixed I can't mod anymore and we all know what that feels like
Thanks in advance!
p.s. It happens right around 11 seconds.
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