12-13-2010, 06:26 PM | #1 |
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Quad pipes
If the 1M shares an engine and output numbers with the 335is and Z4-35, do the quad pipes serve any purpose apart from aesthetics?
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12-13-2010, 11:43 PM | #2 |
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they weren't functional on the E46 m3, Z4m, ect. It's for astetics and a new M tradition. The dual pipes on my S2000 were for astetics as well.
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12-18-2010, 09:41 AM | #4 | |
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Quote:
Hope this helps... -Greg
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12-18-2010, 11:27 AM | #5 |
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waste of time, money and adds unnecessary weight. Anyone actually see a reason to have them?
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12-18-2010, 12:34 PM | #7 |
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Depends on the layout underneath the car really. The current layout underneath a 135 makes true quads (dual pipe, dual muffler) difficult. On the 135i the two exhaust pipes merge into one way up stream right after the downpipes. Given that this is an M I woud hope the exhaust on the 1m is a true dual all the way back.
Whether or not a true dual (quad) exhaust is beneficial... well probably not at these power levels. You would have to really crank up the boost before a dual exhaust truly became beneficial IMO. So in the end it's really just for looks and I think most people are ok with that because it looks badass. |
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12-18-2010, 01:13 PM | #8 |
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12-18-2010, 01:28 PM | #9 |
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Simply put. The 335 N54 including the 335is is a true dual. The 135i N54 is not, it merges after the downpipes. There is no difference in power between the two configurations I just hope the 1M has two pipes running all the back so people have nothing to complain about.
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12-18-2010, 01:43 PM | #10 |
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Thanks for the great responses / insights.
Would still be nice if the quad exhausts indicated some differentiation in power from the M's N54 siblings! |
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12-19-2010, 10:17 PM | #13 |
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I mean they serve no performance purpose.
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12-20-2010, 01:51 PM | #14 | |
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12-20-2010, 09:39 PM | #15 | |
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