BMW Z4 sDrive35i (E89) 306 KM / 400 Nm 2009 - 2016. - BMW Z4 sDrive35is (E89) 340 KM / 450 Nm 2010 - 2016. Model: BMW Z4. Installation is straightforward and follows a plug & play concept. Open mode - exhaust gases bypass the rear muffler, resulting in a louder, more direct, and sportier exhaust tone.
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