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Also have Stromung, have Euro headers soon to be installed (if I ever just do it), hoping I don't find that after I do it the volume is too much. As already said, sound volume and it being too much depends on the person, also hoping the OP and his Roadster is louder to the driver than the Coupe.
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2006 Z4M Coupe - Stromung exhaust, ZHP knob, stubby antenna, clutch delay delete
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