The notorious e-race you are referring to is no longer manufactured. They have replaced it with a very toned down version (still authentic!).
I cannot comment on how the removal of cats will affect sound as I have the original e-race.
e92 335xi Black Sapphire Metallic - Saddle Brown
| JB4 | WW Meth | BMS DCI | Eisenmann Race Quad | AR Catless DPs | KW v1 | LUX v3 | Aero Lip | Painted Reflectors | Matte Black Grill | OEM 230s | CF CSL Trunk |