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| 09-09-2024, 02:30 AM | #1 |
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BMW 2008 535xi n54 loses horsepower
I have a 2008 535xi n54 and my blow off valve stopped working about a month ago soo thought it was bad. I got a new blow off valve brand new and installed it with the old spring cause it’s stronger and still nothing from the blow off valve. Now I’m worried it’s something worse does anyone have any thoughts or ideas on why it still doesn’t work and why I went from about 400hp to like 200hp?
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