Ended up looking really good for sure, seems like the bumper and the cut off peice would have a nice flat mating surface too. You could make it super strong with adhesive or 3M tape before the screws too although I'm sure with both peices being so similar the screws are more than enough. Glad I got to see it done, still debating on selling my Roush bumper and if I do I'm doing that.
Oh by the way I think your car would look BADDDD as a mofo with the matte black hood, roof and the rest painted Audi TT Nimbus Grey. Always wanted to do a ZX3 like that, any little hatchback car for that matter.