Ok you have the GXV on the Exmark, If your Honda has the GCV consumer grade engine that your reason? The GXV 160 is Honda's so called commercial grade engine so it's made to do commercial work. That engine on there Honda mower is running like $1300. I'm not really such what hp the GXV is I think it's like 4hp but you need to remember that the GCV is probably not 5.5hp either.