Y Pipe for Alpha 1

[man-of-war]

Hi,<br /><br />I have a 1980 Wellcraft with a 454 Big Block and an Alpha One Outdrive.<br />When I bought the boat it came with a thru-hull exhaust and now I want to install a y pipe but I need to know which y pipe will fit.<br />I am looking to buy a used y pipe, Casting # 44265c1, and I would like to know if this would fit.<br />Does anyone have any links to getting a used y pipe?<br /><br />Thanks,<br />Steve