Hello Version 3 is out
Nnarwhal and Tench added.
Water streams and diesel exhausts tweaked  to look natural.
Tweaked, water streams and diesel exhausts.
Shoud work also with stock and other "supermods".
Gredits to Ducimus for Narwhal and sub smoke .
I have now tweaked  us sub water streams and diesel exhausts as much as I want, so this is my final version. 
Original readme
Tweaks are for : NSS_Balao ,NSS_Gato, NSS_Porpoise, NSS_S18, NSS_S42, NSS_Salmon,
NSS_Sargo, NSS_Tambor and also for Car as it uses Tambor hull.
This is my first tweak pack and it was hard work but I also learned a lot.
Gredits to Racerboy and Rubini for  pioneering work for water streams and diesel exhaust.
Skwas for S3D, The RFB team for nice mod. For my work No permission needed use as you like.