12-20-2015, 01:14 PM | #1 |
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Exhaust muffler options
Is there anything like an E92 OEM mod for a 640i? I want to make my exhaust a bit louder, but don't want to go for a full exhaust system, primarily because of warranty concerns.
What are the options? First prize would be a mod to the stock muffler - anything like that possible? |
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