You can find his mod here: Do not unzip his mod place the full zip files in your /Mods folder. To save your sims new physique this mod requires the No Fatness / No Muscles mod by scripthoge otherwise when you save the game or change lots they will revert back to the normal physique range.
You must change a clothing item in CAS for the changes to show on the sim. package in /Mods folder as usual IMPORTANT INFORMATION PLEASE READ This mod does work, your modified sims will save. This mod expands the range of the two physique sliders (Heavy, Lean) & (Fit, Bony) they are found on the left side of your sim after clicking on him/her wile zoomed out in CAS all sim age ranges have these sliders except children do not have a Fit/Bony slider.
X10 is 10 times the original EA limit (new version requested) X5 is 5 times the original EA limit (previously version 2) X3 is 3 times the original EA limit (previously version 1) I have also changed the mod names instead of continuing with version numbers I've replaced them with the times above the ea limit. UPDATE: As requested I have added another new version which expands the range even farther than the last two, however expect a lot of clipping issues beyond the range of original x3 version.