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      05-07-2015, 05:04 AM   #5
AusF20/F48
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Drives: F20 125i MS, F48 XD25i
Join Date: May 2012
Location: Brisbane

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A combination of a larger bore exhaust system (125i M Performance) and a engine remap will give your 116i more power and likely a better sound.
I also doubt that any part upgrade of the exhaust system will give any real benefit to power delivery. It will probably only give it a better exhaust note.
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