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      06-02-2011, 04:54 AM   #9
Jeef Beef
Lord Captain Commander
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You won't get much gains from changing just the muffler. If you want actual gains then you'll need a full system from the headers along with tuning, which would add up to over $5,000 - i.e. not worth it.

Better to just enjoy it as is and leave performance to your other cars

E82 135i M-sport: SGM/6MT/Black
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