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 headers:
http://www.supersprint.com/en/prod-c...laces_kat.aspx
Catless front mid pipes:
http://www.supersprint.com/en/prod-c...pipes_kit.aspx
Or race cat front mid pipes:
http://www.supersprint.com/en/prod-c..._kat_r__l.aspx