has anyone heard anything about these CZR pipes how they work they are supposed to be the loudest pipes at 100 decebles. and another pipe i wanted to know about is the DG RCM.

Here are some links to the pipes

400ex CZR Pipe: http://cgi.ebay.com/ebaymotors/CZR-H...311510004r5965


400ex DG RCM: http://www.places2ride.com/motorcycl....asp?sku=53360