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Old 09-20-2019, 06:32 PM   #1
Scooby Newbie
Member#: 504005
Join Date: Jul 2019
Default Rattle coming from cobb big sf intake when in gear after going stage2+

I'm getting a rattling noise coming from my intake when I'm in gear. The noise goes away if I'm in neutral.

I saw a previous thread where the intake box might be hitting the chassis now that the car is vibrating more after going stage 2+. They suggested adding spacers but I am not sure which spacers to add.

Has anyone else experienced this before? I'll try to take a video although I am not sure if the noise can be heard from a phone camera.
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Old 09-22-2019, 10:32 AM   #2
Scooby Newbie
Member#: 446364
Join Date: May 2016
Chapter/Region: BAIC
Location: Nor Cal
'17 STI LMT '08 LGT


If this is the actual issue, I would re-check my installation and ensure everything was tight. There are no moving parts. The intake is not connected to the drive train, so the car being in gear vs. neutral shouldn't make a difference. A rattle usually means something is loose, hitting, vibrating or making contact. Have someone under the hood at the intake and increase RPMs, I'll bet you'll find the problem.
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