Radolfzell, Germany, September 29, 2006 BRP's Evinrude ® E-TEC direct injection two-stroke outboard engines have received approval for operation on Lake Constance (Bodensee) . Evinrude E-TEC outboards are the first two-stroke engines to receive such approval from the nautical authorities responsible for one of the most pristine and environmentally sensitive bodies of water in Europe .