Kleeman is all up in the pre-Essen tuner news today, first with its ML 50K S8 and now — possibly its piece d'(wind) resistance — the S-Class based S50 S3. Ok, it's not as extreme as the ML, but the S3 does get some mild tweakage — remapped ECU, high-flow air filters, and custom exhaust system — through which the Danes found an extra 40 hp under the seat cushions. eMercedesBenz has the whole story.
Official Details Of Kleemann S50 S3 [eMercedesBenz]