Full catless, with 2 OEM resonators left in with Eisenmann Race. Sounds like a completely animal! At under 3k RPM, the car sounded similar to my old Borla setup and was very manageable in terms of sound. Step on it and the car sounds like this:
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Current:
16 F82 M4 GTS, Black Sapphire/Black, DCT
08 E92 M3, Sparkling Graphite/Bamboo Beige, 6MT
07 E85 Z4M Roadster, Alpine White/Red, 6MT
99 E36 M3, Techno Violet/Dove Grey, 6MT