I had the same issue before. So instead, I bought a Robispec harness bar and had bolt-on locations welded for the upper harness. As for the lower portion, I have bucket seats installed and had a lower bolt-on location professionally welded as well.
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VERTEX | SUIVAX | AMUSE | SSR | SPARCO | STILLEN | FAST INTENTIONS x HKS | HANKOOK | NARDI | NRG | EVO-R | ROBISPEC | SPC
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