On EdgeShorty mid is for long tubes. Being long tubes are "longer" , you have to lose some length in the mid pipe, thus "shorty". Most pipes are matched for easier install. Ie... Mac long tubes might not match a bassani x pipe, causing you to have issues and needing some "custom" work.
myslow04gtya i understand that im just trying to double check what i have on my car i was told i have a mac prochambered midpipe but when i went to american muscle there were two one longer one shorter as you stated but i cant really tell forsure which i have i think its the shorty midpipe
myslow04gthmm thanks for the tip im going to check a bit later im going to have my car lifted so i can see exactly what the situation is.... the faster i resolve this problem the faster i can order my mods it sucks so dam bad