air box 3rd air horn

[just-pinch-it]

Seen that the SLP stage iv kit instructs to add a 3rd air horn to the air box. Has anyone with a non mod sled or with a non stage iv mod try this? When looking at the ID of the air horns vs the ID of the tb's it just looks restrictive. Any thoughts of power gain or loss, fuel requirement?

 

[SnowSnob]

Since you cannot by the air horn separately as in I looked up the part number and nothing came up, I would assume the extra air horn only helps with the porting. SLP could try to sell us this extra air horn as a gimmick but they must have found it does no good without porting and I give them credit for not trying to sell everyone else snake oil. OR maybe the extra air horn without porting loses hp???
You're idea had me intrigued but after a little researching I would not install it unless I had THEIR porting. Plus I guarantee it will void our warranty.