way different set up,,the dam thing cant run without the blower,,look like they added the turbo to help it get a lil more,,tons of torque,,got two 12V92 in the shop now,,,the 2 stroke thing is catching on,,you can get 400hp out a 2.5 mercury outboard,,not bad,,compared to the house 340 at 2.5 too,,,the 2stroke engines got lots of RPM too