I really don't think you would want the race setup either way, the volume on those is generally pretty absurd. Without cats for muffling, you would easily get pulled over for it if your country has any sort of noise ordinance at all. Price is high, but the quality is perfect and they actually do the R&D.
They offer full catless:
Catless front mid pipes:
Or race cat front mid pipes:
130is MSport 6MT/ SuperSprint Headers & Exhaust with Swain Tech Race Coat / DISA Manifold / EVOLVE Tune / TCK DA Coilovers / Euro CF Intake/Box / BMW v1 Wheel / BBS RGRs with PSS / F30 Brake Shield / BMW CF Spoiler & Diffuser / Blackline Tails / Rear Fogs Enabled / Front Fogs Delete / CDV Delete / BMW Black Kidneys / M5 Illuminated Knob / BMW Stripe