I think its to do with noise, ie tuning the noise out, fingers on a recorder type thing, lots of cars have them with just a go nowhere piece of pipe randomnly placed in the trunking somewhere
I think its to do with noise, ie tuning the noise out, fingers on a recorder type thing, lots of cars have them with just a go nowhere piece of pipe randomnly placed in the trunking somewhere
That was the first thing that I thought of, "tuning pipes". Nothing to do with the tuning of the engine in the expected fashion of fuel and air mixture, but tuning of sound to reduce/remove resonances within the air ducting and also by doing that reduce the possibility of turbulances in the airflow in the ducts.