I'm going to do this too. Have the seats, just haven't had the time.
I think this thread has the info your looking for.
https://www.svtperformance.com/forums/threads/my-frpp-recaros-just-came-in.909957/
I bought a set of the 19's for my lowly GT last week. Luckily all four wheels arrived in pristine condition even though they were not double boxed. The face was protected with molded foam but the inner lip was not.
I'm doing Michelin Pilot Super Sports in sizes 255/40-19 front and 295/35-19 rear on Forgestar F14's. The fronts will be 19x9 but I'm not sure if I should do 19x10 or 19x11 for the rear. Michelin specs are rim width
10-11.5, with the section width being 11.9 on a 10.5 rim. As of now I'm...