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GT4 Cabin sound with mods

3K views 2 replies 3 participants last post by  Kenith 
#1 ·
I am looking to join the GT4 family and have been searching for one.

There is a local GT4 with sharkwerks mods minus the differential and header which I really want to get.

Went to the test drive but found this whirring/drone sound which my wife and I think would be too much to bear for normal driving.

I was really surprised as it doesn't have any exhaust mod and we test drove stock GT4 before and found the stock sound to be awesome without any drone.

To make sure we are not imagining thing we went to test drive the stock GT4 again and confirmed that the stock car does not have any drone.

Does anyone here have inputs on the cabin noise from installing BMC high flow filter and the IPD plenum ? or have any idea what else could be causing this noise ?
 
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