I have read a lot of posts and threads that say a FIPK has a growl or rumble to it. Does this sound come from the engine or does it just make the exhaust louder?

 

The factory intake has provisions to quiet things down engineered into it in the form of a "silencer". The FIPKs don't have this, they focus on maximum, smooth flow. The engine and exhaust is unchanged, but the intake makes a sucking sound similar to a traditional 4-barrel sound when floored.

 

i have a K&N fipk. and they are louder and add a growl. but nowhere near as loud as an old 4 barrel. but they do compliment the sound of an exhaust system.

 

the only difference in sound i have noticed is a sucking sound like max said. but i only will get it when at, or over 2500-3000 rpms.

 

Originally posted by max mitchell
... the intake makes a sucking sound similar to a traditional 4-barrel sound when floored.

To tell the truth, I personally have never noticed any type of "sucking sound" whatsoever, at any rpm. I think sound shouldn't be the focus of the PIPK but of the exhaust.

The only sucking sound I hear is usually on Friday nites really.. Then my exhaust pipe gets a real workout..

 

Nobody said that it sounded like a 70s muscle car with a big block, a quadrajet, and a flipped lid. IT MAKES A SUCKING SOUND !! It's even heard over a very loud exhaust system on my truck.