I don’t think their M1’s have a lot of the “special features” that ours have. For instance our export models (including the ones bought by Australia) do not have the DU armor package.
Although the details depend on the model, the M1 characteristically comes with highly effective targeting optics, electronic control systems and software, and fire suppression system. Against the Iraqi Army, we could see and hit them at night, in rain or sandstorms, and at longer range. Personally, I am all for the Iraqis adopting Russian tanks and equipment. That will make it easier if we or an ally has to settle their hash again in the coming years.
Export Abrams for Iraq don’t have the DU armor package, no thermal sights, much crappier radios and are missing a lot of automation. The configuration of an export Abrams varies by where it’s going. The most advanced one sold is the M1A2S, sold to the Saudis only; the Iraqis got the M1A1M.