Intake noise/maf.

[black84]

Quick question ever since I put my maf pipe and my KN filter I get a sucking noise followed by a swish coming from my KN when I let off. Is this normal?

 

[TR Custom Parts]

Perfectly normal.

 

[XLR8]

Yep, the sneeze, fart, etc is normal.

 

[scottyb]

Now you've found out there's really a small jet engine under the hood?

 

[TurboBuckeye]

Now you can make pedestrians run for cover