I am thinking about getting Kleeman K1 for my E63, is it worth getting it? Also anyone dealt with RPMNorth (http://www.rpmnorth.com/index.htm) here on Long Island. They have ECU + VMax delimiter listed at $1000, is that a K1 package from kleeman (http://www.rpmnorth.com/2products_Me...Kleemann.htm)? Also can anyone recommend RPMNorth or should I go elsewhere?

Thanks.