The boost pressure does not have to push and displace the diaphragm in the noise maker, so theoretically there should be a small improvement. I'm sure it would not be noticeable, however, since the pressure is not being bled off either, it would not hurt anything to delete it. Give it a try and let us know what you think.
--Dan
This functions the same as the Forge silicone IC delete hose that I've put on our Clubman. Frankly, I can't say that I've noticed any sound or power difference from it, but I still consider it money well spent. Particularly since I added the Helix FMIC.
It is kinda stupid to have in place but a lot of companies are doing this sort of thing these days, the 2010 Mustang has a similar device that pipes engine noise into the cabin.
I think the conversation went more like this thought. NVH department: "It's really quiet in the new car, the buyers will appreciate all of it." Marketing department: "Uhmm yeah, the buyers are already pissed we got rid of the supercharger whine, is there any way we can make them hear the turbocharger more?" NVH: "Seriously? We just spent 8 months and over 2 million dollars designing the quietest interior ever in a MINI and you want more noise?" Marketing: "Yeah, now you get it! It should only take a few months and less than one million to do this." NVH: "Do you listen to the words that come out of your mouth or just start talking and hope logic happens?" Engineering department: "Just ignore him, we can make a plastic tube for three bucks that takes does that."
Perhaps as well, it was a better option than the tubing piped into the cabin from the exhaust. The test drivers all fell asleep and crashed, so the idea was scrapped
I had the DoS CAI Installed with the Noisemaker delete at the same time back in Aug. Can't say I've noticed a big diff, if anything I am hearing more (see below). The DoS CAI is working very nicely.
That said the OEM BOV "iron lung/sucky sucky" noise is killing me! My understanding is that the OEM air box had the BOV feed into it which cut down the sound.
Clint from DoS is working on some sort of baffle to cut down the noise (most pronounced when depressing clutch shifting up from 3rd +)
Anyone got a delete kit for the noisemaker that brings in sound from the tires? I think they made the engine noisemaker so it could compete with tire noise.
For one the engine sounds quieter, I felt a little more throttle response and a more steady, unfluctuating idling. It was well worth the 8 bucks I invested in it. I have a 2009 Cooper S with 92k miles which I got 6 months ago. I would definitely recommend doing it. Who needs that extra hunk of junk in the tiny Mini engine bay anyway.
I took it off my 2009 Clubby shortly after I got the car, it was rattling around and I did not see the point of it, especially on an automatic equipped car.
I noticed absolutely no difference in the engine tho, performance or noise - wise.
