?'s about xs-power fmic

For you guys that ordered xs fmic's from ebay, did they give you an option of what bov flange was one it, or do they only have the 50mm flanges? Also, how hard is it to change the 50mm flange to a stock one? Thanks.

For you guys that ordered xs fmic's from ebay, did they give you an option of what bov flange was one it, or do they only have the 50mm flanges? Also, how hard is it to change the 50mm flange to a stock one? Thanks.

Mine came with a flange for a 1g bov, but i drilled 2 holes and i now put a type rs.