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Some time ago someone (presumably a cop) had reported me to the EPA for excessive noise pollution.I got a letter from EPA which said that I had to go to one of approved (they give you a list) exhaust places,get them to mesure the noise,recieve a certificate and fax it back to the EPA to get clearance.I went to my friendly local exhaust place and asked for advice.Ididnt really want to change my exhaust.What they done was cut a piece of aluminium in the shape of a flange which joins the cat and cat-back pipe.Drill 3 or 4 very small holes in the middle and slip it between the cat and the cat-back.Cant really tell from the outside.I took the car to the approved joint with a green on my dial whatching him.At this point I have to mention that I took my car there the day before to mesure what my noise level actually was.After parting with the required $50 I was informed that noise is 108 db and then they tried to sell me new exhaust.Now, he was frantically going over and over trying to figure out why the car is so quiet all of the sudden as everything was seemingly exactly the same as the day before!Fu*king looser.It surely was one of this "Mastercard moments"-priceless!!!Anyway,He wrote down the indicated 87db on the certificate,which I then promptly faxed back to the EPA.Rang them up to confirm.Took the "restrictor" out.End of story.

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