I am looking to replace/upgrade my water pump on my 2011 RW405 to increase the weak water flow and silence the noisy pump! The problem is that I am not sure which model of Shurflo is currently installed from the factory. If I read my Shurflo manual correctly it appears that it may be a 2088. The one I am looking to replace it with is the SHURFlo Smart Sensor Extreme 5.7 (5.5 gpm). Has anyone replaced theirs yet? And, if so, a noticeable improvement? Worth the $200 upgrade?