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12-13-2008, 12:37 PM | #1 |
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Stock exhaust specifications
Everyone is speaking about aftermarket-exhaust. To have some "facts" to be compared i īd like to ask this community for some figures to the stock exhaut (loudness standing/moving, weight and so on).
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12-13-2008, 02:05 PM | #2 |
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The stock cat-back is ~55 lbs if I recall.
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12-13-2008, 10:01 PM | #4 |
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Best advice... dump the stock for an after market.
My M3 is approaching a year old next weekend (21st Dec08). While it was stock for 9months i racked up 3657miles. After deciding to spend some dosh on the car in OCT/NOV to fit a Gruppe M intake and Vorsteiner Titanium exhaust, I've racked the car up to 5730miles. Its been sooo pleasurable to drive since the exhaust upgrade. Am now waiting for the AA X-pipe for the added grunt and minor power gains due in late DEC08 or early JAN09 Go enjoy your M mate
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12-13-2008, 10:21 PM | #5 |
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OEM exhaust specs
I weighed the muffler at 43.7# (pipes cut off).
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Greg Lake Oswego, Oregon, USA 2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 |
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12-14-2008, 02:48 AM | #6 |
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12-14-2008, 02:51 AM | #7 |
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+1, i put the remus on at right after my 1200 miles service and now i have 9,300 after 4 months of owning the car
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12-14-2008, 07:02 AM | #8 | |
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Quote:
Same here. There is just much more sensation with my new ACS exhaust too. Esp blipping to shock ppl.
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12-15-2008, 10:19 AM | #10 |
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Yeah i dont think there is official word on the db figure of the stock one. But i realise how much sound this S65B40 is capable of with just an exhaust mod like the ACS race. Its LOUD. I cant stop thinking how much louder it will be without the mid-cats and resonance box.
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01-01-2009, 12:39 AM | #11 | |
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01-01-2009, 02:51 PM | #12 | |
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Quote:
Not exactly quiet... stock E46 M3 & CSL were comming in under 90dB. I want more noise low down, not at the top end... not sure which aftermarket system will give me that though. |
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01-01-2009, 05:16 PM | #13 | |
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Stock exhaust loudness
Quote:
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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