Does anyone know anything or have any opinion about the engine dampener on the e21 320i? I believe mine has gone bad, but I'm not sure how much tension it should have to begin with? Should it feel something like a small shock absorber and want to extend on its own? Are they that effective in quieting engine shimmy? Most catalogs list them for about $55 US, but are they worth the time, effort, and money? Second, the fuel reclamation system. Is there any way to test if it is working? I had a hose that was severed and I don't know how long it was like that. Is there a way to check for clogs? What about the charcoal canister? I believe it is original to the car. Should it be replaced just on general principal? If this system is working properly will it boost my gas mileage? Finally, I have a question about exhausts. Does anyone have any experience with aftermarket exhausts? I was looking at the ANSA muffler, but I don't know how they sound? I would like to step up the performance a little without sounding like a boy race. Does anyone know the life expectancy of an ANSA muffler? Any help would be great! Thanks.