The simple answer is no it will not.

The roadster does not have the frame rails of the mustang so the IRS sub-assembly cannot be unbolted from the mustang and bolted onto the roadster.

The roadster IRS frame is set up for thunderbird/cougar/markviii components. The center housing is the only component that I have heard might fit, but the 2000+ SVT's had 31 spline axles and wont be compatible with the FFR supplied axles without some work. the other components needed are the spindles and hubs. The rear spindels from the svt will not fit the FFR design. I think only the 99 hubs had the correct spline count for the FFR axles. HTH.

The sale FFR has going right now will give you $1100 off the IRS option!