Originally Posted by
witchal
Tom, just to be clear, you're not talking about the gurgle sound of the engine decelerating after it warms up are you? I think thats normal.
No. This (only from what I can hear) happens only after starting the car up after it sits overnight.
When I switched my MB airbox to the NWCAI, there were
no weird side effects. The engine fired and idled as normal, without a change in exhaust note at startup. That's what has me concerned after switching it back.