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BMW 3-Series (E90 E92) Forum
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M5 titanium vs Fi
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| 06-20-2023, 01:10 AM | #1 |
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M5 titanium vs Fi
New to the forum, thanks for any feedback. I have a titanium exhaust system, is that anyway similar to the Fi system?
Does the Fi system void any warranty? Will Fi increase HP? |
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