10-14-2016, 07:32 AM | #45 |
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M40i muffler will not fit - you have to get new tubing from up front.
M40i exterior sound is depending on engine tuning, and interior is a recording of exterior sound being played through speakers. My M Performance Klappenshalldämpfer - see and listen on X4 thread "Anyone installed......has two modes - flaps L/R - Sport/Track= legal/illegal. Sport is nice - Track is nicer with pronounced growl |
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10-14-2016, 03:09 PM | #46 | |
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10-15-2016, 08:37 AM | #47 | ||
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10-15-2016, 10:44 AM | #48 |
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PIEZON, this is a long standing discussion on X4 thread: "Has anyone installed X4 35i M Performance Klappenshalldämpfer.....
I have put it on top of the X4 threads. Sound from Klappen is a Russian car with tuning, but STD downpipe. STD muffler, Sport and Track sounds. Dyno test with Track mode. Enclosed is my Klappen. |
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10-15-2016, 11:07 AM | #49 | |
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10-15-2016, 04:11 PM | #50 |
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PIEZON are you planning to get downpipes =D ?
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10-15-2016, 06:08 PM | #51 |
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Waiting to hear from you ?. Looking for a DP that won't mess with emission standards.
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10-16-2016, 01:23 AM | #52 | |
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Please let me know if you find someone who ll do that, I have a X3 35i.
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10-19-2016, 10:44 PM | #53 |
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335xs2dinan PIEZON
Here's the thread I created http://x3.xbimmers.com/forums/showthread.php?t=1316376 Unfortunately all downpipes will mess with emission (inspection) unless you have a Flash tune that does CEL delete. Otherwise I'm not worried, NJ inspection is not yearly
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10-20-2016, 04:21 AM | #54 | |
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10-20-2016, 07:37 AM | #55 |
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It's something everyone deals with in compensation of better sound and freeing up WHP/WTQ in the N54/N55 world heck even the B58 already seeing Huge Gains when changing DP , a lot of us have a known shop that wont fail us due to just a downpipe. Others, remove it prior to inspection in some states that require yearly inspection. For those of us in non-yearly we're happy.
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10-20-2016, 11:08 AM | #56 | |
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10-20-2016, 10:21 PM | #57 |
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before w/ e85 blend (makes car faster and exhaust pops louder) ^^^ and after downpipe below with only 93
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60-130 5.04s G80 M3 Stock Turbo 60-130 4.82s | 9.4@148mph 1/4 Hybrids IG: @bmwF9XG80 Last edited by FSociety; 10-20-2016 at 10:31 PM.. |
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10-24-2016, 12:47 PM | #58 | |
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01-09-2017, 07:53 PM | #59 |
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Why does a downpipe throw a CEL? Is this for catless or catted downpipes? I am looking at the ultimate racing catted downpipe. Wonder if it bolts up to the stock exhaust? I'm looking more at power than sound.
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03-15-2017, 03:56 PM | #60 |
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supersprint?
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03-15-2017, 05:12 PM | #61 | |
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