I ordered an american thunder flowmaster system here and a bit confused. I called up flowmaster before I ordered and told them im getting a high flow cat from dynomax and asked what system i should get, I told them I wanted a 3" system and blah blah blah, i was told to get the 2.5" inlet part and that it expands into 3" right after and goes into the muffler and then comes out as dual 2.5" . Anybody know if this is true or not, cause they also have a 3" inlet system which im guessing stays the same all the way to the muffler. Just wanna konw if this B*tch lied to me. Thanks in advance, I ordered already btw, part #17234 this one had the 2.5 flang inlet and supposably goes into a 3" right after and part #17234 has a slip fit into the converter and 3" from the beginning.
Thanks Again

Jesse Jennings