HOG 5th LP port

[AndyNZ]

I notice that HOG D1 first stages now have a 5th LP port on the end of the turret.

Can these turrets be retro-fitted to older D1 first stages? Any pointers as to where they could be sourced if so? Thanks.

 

[AndyNZ]

Ignore that, just found them for sale at Dive Right In Scuba....