Has anyone tried maintaining the silent choice system when installing Stellings Extension Boxes on Bravo Drives? I am thinking of fabbing a 2.5" Y pipe going into a T to pass though the box to the B 1 transom assembly??? I would only use this system while idling.
Thanks.

I would just get good switchable mufflers.

I good source for info would be Stellings (559) 485-9394

I have it on mine.

They have an adapter bolted on the y pipe and one bolted
on the transom assy connected together with a piece of exhaust hose.

Is your Y pipe just hanging by the diverters or is there some attachment at the lower end? What type of exhaust are you using (mine has rubber hose on each end of the diverters and if there is no support of the Y pipe I wounder if there would be a lot of movement)?
Thanks.