I know Magnas have a 5x114.3 stud pattern, but will 5x100 fit a 4cyl TR?? Thanks guys!!

Pretty sure they won't. I reckon Holden have 5x100 and I'm certain that they don't fit. I could be wrong though.

nope, never ever

5x100 is wrx IIRC

holden is around 5 x 120?

Mitsu, Honda, Ford, some Toyota - 5x114.3

Subaru, some Toyota, some Audi/VW - 5x100

More recent Audi/VW - 5x112

Commodore, BMW - 5x120

Vague, random guide. And no, not interchangeable.

Mitsu, Honda, Ford, some Toyota - 5x114.3

Subaru, some Toyota, some Audi/VW - 5x100

More recent Audi/VW - 5x112

Commodore, BMW - 5x120

Vague, random guide. And no, not interchangeable.

I stand corrected, cheers.