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| 07-15-2008, 06:26 AM | #1 |
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How loud is stock exhaust in decibels?
Anyone know how loud the stock exhaust is in decibels? Is it less than 100db?
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| 07-15-2008, 09:04 AM | #2 |
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Definately under 100, probably around 75dbl.
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| 07-15-2008, 09:07 AM | #3 |
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OEM Specs
moving vehicle = apr. 75 db stationary vehicle = 92 db at 6.225 1/min value of backpressure = 0,47 bar at 2. gear and 0,51 bar at 3. gear weight of the muffler = apr. 21 kg
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| 07-15-2008, 09:56 AM | #4 |
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You guys are brilliant! I knew someone would know the answer. I love this forum...
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| 07-15-2008, 11:32 AM | #5 |
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Nice Nate, I knew that I have seen your post somewhere else. I just wasn't positive.
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| 07-15-2008, 01:34 PM | #6 |
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| 07-15-2008, 01:47 PM | #7 | |
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Sport performance video
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| 07-16-2008, 05:25 AM | #8 |
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| 07-17-2008, 11:24 PM | #10 | |
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?? is Race is legal ??
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M3 E92 Euro DCT / Alipne White; MDrive; EDC; PDC; Navi; 19'' Wheels; CF grille; CF lether trim; Individual Audio; STI-R; Video rec. system; Tint: 18% front, 6% rear;
Coming: Vorsteiner CF VRS Rear Diffuser, Vorsteiner CF VRS Front Add On Spoiler, Eisenmann Sport Exhaust.  |
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| 07-18-2008, 12:06 AM | #12 | |
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Quote:
moving vehicle = 75 db stationary vehicle = 92 db at 6.225 1/min value of backpressure = -25% weight of the muffler = apr. 21 kg RACE-Version: moving vehicle = apr. 95 db stationary vehicle = apr. 102 db at 6.225 1/min value of backpressure = apr. -32% weight of the muffler = apr. 21 kg
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M3 E92 Euro DCT / Alipne White; MDrive; EDC; PDC; Navi; 19'' Wheels; CF grille; CF lether trim; Individual Audio; STI-R; Video rec. system; Tint: 18% front, 6% rear;
Coming: Vorsteiner CF VRS Rear Diffuser, Vorsteiner CF VRS Front Add On Spoiler, Eisenmann Sport Exhaust. |
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| 07-18-2008, 12:50 PM | #13 | |
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The Sport system is TUV approved and road legal in Germany as well as US.
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