CAMARO6 - View Single Post

SomeGeoffGuy · 01-19-2021, 08:38 AM

Not surprised the MSD has a whistle, it is very similar to the OEM manufactured part and has the same shortcomings in regards to NVH. That being said, the reason it is so loud with the GM Performance Parts intake is that the filter has direct line of sight to the wheelhouse liner, and through it, right outside into the driver's ear. The rotofab is mostly in a sealed box like the OEM airbox and the box acts as a bit of a silencer.

You could try putting some sound deadener on the inside of the wheelhouse liner if you could get something to stick - might knock down the sound enough that you can't hear it at least! Plus if you switch back to roto-fab you would have to retune again assuming you tuned for the GMPP.

-Geoff

01-19-2021, 08:38 AM	#21
SomeGeoffGuy Drives: 2023 2SS Convertible Join Date: May 2009 Location: Metro Detroit Posts: 1,063	Not surprised the MSD has a whistle, it is very similar to the OEM manufactured part and has the same shortcomings in regards to NVH. That being said, the reason it is so loud with the GM Performance Parts intake is that the filter has direct line of sight to the wheelhouse liner, and through it, right outside into the driver's ear. The rotofab is mostly in a sealed box like the OEM airbox and the box acts as a bit of a silencer. You could try putting some sound deadener on the inside of the wheelhouse liner if you could get something to stick - might knock down the sound enough that you can't hear it at least! Plus if you switch back to roto-fab you would have to retune again assuming you tuned for the GMPP. -Geoff __________________ '12 2SS RS Convertible - Traded in. '16 2SS Convertible - White on white, mag-ride, NPP, nav. Sold! '23 2SS Convertible -Same as above except orange.