Someone on SFR just posted pics of his s-trim and it seems to have a different housing then mine. Can anyone post pics of the impeller or tell me how to tell if I have a s-trim that would be great. thanks
The S-Trim and A-Trim head units are the same. The way to tell is by looking at the impeller. The A-Trim impellar has straight vanes and the S-Trim's are curved. Take your powerpipe off and look at the impeller.
from doing a quick search it looks like that a v-1 can be both a-trim or s-trim or any other trim for that matter... Looks like your gonna have to take a few things apart to find out like Vib said.