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      08-22-2012, 03:37 AM   #6
AusF20/F48
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Drives: F20 125i MS, F48 XD25i
Join Date: May 2012
Location: Brisbane

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In therory it could effect your warrantee. if you use the same size pipes as the 118i then there should not be a problem, however if you change the mufflers it may change exhaust gas flow from the engine and if that contributes to a malfunction of the turbo/s that could be an issue for you.
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