Cut the foam in half an poped it back in went for a run and it sounded as it did before seemed quiet after driving without foam so i popped into a petrol station and took it out most of the time it sounds the same although a little more sporty with gentle acceleration its just annoying at high speed acceleration but once you get there and the car settles down you can cruise at high speed with out all the noise.
Going to keep messing around with foams just for the fun of it as its only a two second job.
A U.S. brand, pretty much seen on muscle cars or trucks. It gives a good loud and deep rumbling for your engine. I'm not sure if it has any performance gains or not.
Here's one on a truck....sounds almost like the one on my truck [youtube]7F0YPnvSeKU&feature[/youtube]
I don't think we have a sound generator on the Alpina, your better off fitting a GruppeM intake and it just so happens I have one for sale! :wink: PM me if your interested.
I'm sure there's a way, the serial number on my intake is 02-0302 if that helps. The main reason I'm taking it off is because the combined noise from the intake and my exhaust is too much. I was 102db on a drivethrough at Silverstone on Saturday without the intake.