I picked up the Eisenmann Sport with 90mm tips 16 OCT 12. The sound is awesome!! Driving back through the Mecklenburg tunnel to Stuttgart, I was in heaven as the tone surrounded the car causing looks from unsuspecting drivers. I made a trip to BMW Welt in München; while in the parking garage I revved up the engine scaring a group of tourists, but the sound was incredible. Love the sound! ///MFlight