Acrtually my old Gemballa exhaust would set off alarms left and right. This new bumper is designed from RUF parts. My new muffler is made by RUF and the diffusor is made by RUF as well. The Gemballa rear bumper is simular but different in design. You can see it on the Gemballa website. It is also much much more expensive. I am going to bring a sound recorder in the car today and put it in the trunk while driving and hopefully I can get a few good soundbites
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