With the lower bump stops it’ll depend on how much you lower the car. With my car I have about 1” of travel between the LCA and the bumpstop, but my 1.12” bars have a 300 lb/in wheel rate. With 1.03’s I think you’d want a good 1.5” of clearance at least to keep from bottoming out all the time, so a 1” tall bumpstop might be too much. Energy suspension makes a button style bumpstop that’s .687”, that would give you more cushion than the .375” tall ones I run but will still leave you some travel.
Energy Suspension Bump Stops 9.9102G
This is my set up, the bump stops are on the frame because I have an earlier set of the QA1 LCA’s. I also run a spacer under the upper bump stops, you shouldn’t need that unless you lower the car substantially with the 1.03’s. That upper bump stop may be on the tall side for you as it is, you might want to check that you get enough extension. All you’re trying to do with the taller upper stop is keep the adjuster bolt from coming off the LCA lever at full extension. This picture is at full extension not ride height.
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