300/440/550 coffman climax or westcoast exhaust

[greenmachine]

Just want some opinion's or experience on exhaust for my 550sx(spare ski)its a Stock 91 550sx w/ 15.5 skat trak. I have a collection of parts from other skis including westcoast full exhaust with LS manifold,coffman half pipe,and mariner water box. My primary ski has the coffman half pipe and is great. I hear the half pipe is best for low to mid and full exhaust is better for high end power. the westcoast pipe has three or four rings. Also is their any performance loos if i use the stock water box. I want this ski to be quieter.

 

[kevbo]

Just want some opinion's or experience on exhaust for my 550sx(spare ski)its a Stock 91 550sx w/ 15.5 skat trak. I have a collection of parts from other skis including westcoast full exhaust with LS manifold,coffman half pipe,and mariner water box. My primary ski has the coffman half pipe and is great. I hear the half pipe is best for low to mid and full exhaust is better for high end power. the westcoast pipe has three or four rings. Also is their any performance loos if i use the stock water box. I want this ski to be quieter.

Use the half pipe with 550 pumps and the WC full pipe with 440 pumps.