You can always try to retrofit one of those exhaust cutouts and see... not sure where you're going with it though...

 

what you've done is removed a helmholtz resonator. tytpically they are used to introduce inverse-phase resonances to cancel primary resonances, hence making the intake "quiet". a possible second use is to eliminate power-robbing resonances that the engine is not tuned for.

i'm not saying anything definitive, but it is *possible* that this modification on its own may reduce your output at certain RPMs and loads.

 

This is true, however, it can't be any worse than taking the whole thing out and bolting on a cone filter.

 

which is why i also won't do that

but yeah, if you're gonna lose HP for noise, do it for free (nearly)!

 

Well I just did this, but I took a different route.

What I did was unhook the air boxes and lift them up. Once I could see the resonators. Then instead of taking them out, I took electrical tape and cut 8 slices. I placed them over the whole 8 times in opposite directions and then took a long piece and went around them to secure them. Then I fitted the air boxes back on. Same thing as taking them off, just less hassle.

Then I took off the engine cover. I figure it only traps heat, and while doing so I figured there would be no difference, but I **** you not the car does feel a tad different. Kinda like a turbo car gets heat soaked, it always feels like its 70 outside. Maybe its in my head though lol.

I also noticed something, when you take the cover off you realize that there are other ballast along the intake tube. And there is a tube that goes from one intake to another. All of this should really be simplified so that maximum smoothness is achieved.

 

Any sound clips on this setup yet? I'd be interested to hear if this sounds much different from the Stillen and Fujita intakes that are out now.

 

Wait, doesn't the air travel through the silencer into the filter box?

If I understood you correctly, you just blocked off the air supply to the engine... pics would definitely help...

 

The silencers are not part of the normal flow of air. They are extensions off of the air box, and intake tubing. He did not cut off any air flow.

 

There is a little more growl at low RPM, but nothing to run to and tell your mother about.

I removed the silencers and instead of gluing the holes, I taped them off.

It's something to do if you have about an hour or two to do.

 

as i said, they are helmholtz resonators... while they may not be a main path of flow, they do affect the way the pressure waves enter the intake tract. their primary purpose is to normalize flow characteristics throughout the rev band.

 

will taking these off have any effect with the stock intake?

 

wow this job seems so complicated!! or is it just me?

 

it's not i just tapped up the hole with electric tape

 

the silencer hole?

 

hey csquared, you really notice a difference in sound?
is this worth the effort?