looking for silent choice exhaust for 08 activator
 

looking to install silent choice exhaust on my 08 activator. the boat is equipped with cmi exhaust and measure 4-1/2" where it comes through the transom. i contacted cmi and they recommended a bolt on system with pump and actuator for a price of 1470.00$. before i buy it just looking for some advice or options for this upgrade before i pull the trigger and order it.