Air Filter Shootout test
One thing I'd like to ask is about noise levels, maybe no one cares about that but I just added a Perrin and it is really loud booth on boost and BOV operation. I wonder if the Vibrant and the KN are that loud...
OK, I thought it might be the case, I am used to NA cars so when I got rid of the stock airbox I was just really surprised at the loud noise on acceleration, not so much the BOV, I have heard those before but the loud sucking noise that was super obvious even in the cabin kinda took me off guard. 
Thanks for the input!

Thanks for the input!
Thread Starter
Evolved Member
iTrader: (49)
Joined: Apr 2007
Posts: 8,970
Likes: 17
From: Prosper, TX
I know that most of the open's do sound the same, even though on NA cars, there was a slight change in "pitch" from filter material changes (K&N to foam for example) even if overall dB level was about the same.
Did you ever get an Amsoil filter test? I bought one last week.... I love the look, quality, and size..... it fits prefect where I want it to fit!
Now Im interested in the performance!!
Now Im interested in the performance!!
Thread Starter
Evolved Member
iTrader: (49)
Joined: Apr 2007
Posts: 8,970
Likes: 17
From: Prosper, TX







