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09-05-2017, 05:16 AM | #1 |
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125/8i Y Pipe
Hi all,
Has anyone replaced the mid-section resonator with a Y pipe? View post on imgur.com Want to know roughly what it would be like before I go ahead! Planning on getting the 135i(N55) back box too afterwards. Thanks Kuuzu |
09-05-2017, 10:12 AM | #2 | |
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09-06-2017, 12:10 AM | #3 |
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I have my resonator deleted with a y pipe and I have a 135i muffler on my 128i. Once its warmed up and in sports mode, it sounds great but it isn't loud enough for me. I'm 19 so I'd like my car a little louder. Planning on getting my muffler deleted.
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09-06-2017, 03:36 AM | #4 |
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09-06-2017, 02:00 PM | #5 |
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09-06-2017, 02:46 PM | #6 |
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If you want volume and crackle/pop, do secondary cat delete PLUS resonator delete, followed by a 135i muffler.
The setup mentioned above does not sound like a modern BMW... (Could be a good or bad, depending on your preference) but very similar to older, E36 supersprint setup. |
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09-07-2017, 03:25 AM | #7 |
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I did this to my Euro 130i (E81).
Here in Europe we don't have the secondary cats, so I went resonator delete (modified the stock one) + 135i N54 muffler / backbox. Sound is really really great. Pops/crackle when releasing throttle, plus louder sound when acceleration. Overall, it just sound louder and a little bit more agressive, and on the other hand, if you just cruise around in a normal way, is still acceptable, almost no drone at highway, etc. If I were you, I'd definitely go for: secondary cats delete, resonator delete (modified or YPipe), 135i N54/N55 muffler. You could also use 135i N55 resonator and modify it to be like the BMW Performance (easy), and it will be like an Y Pipe.
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2007 BMW 335xi E92 AT N54
VRSF Downpipes, 5" FMIC, VRSF 1.75" inlets, outlets, chargepipe 2007 BMW 330xd E92 MT 2008 BMW 130i E81 (LCI) MT 2007 BMW 130i E81 (LCI) MT |
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09-14-2017, 07:47 PM | #8 | |
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09-14-2017, 09:29 PM | #9 |
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"Best" sound depending on what you want.
And no, I personally do not like ricey fart cans either. You tend to always say resonator delete will make a car sound like shit but its case by cases, so let's not generalize here. |
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09-15-2017, 12:32 AM | #10 | |
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But of course just like to mentioned to each their own. If you want an untuned exhaust note with drone then go ahead. The general rule is that you want either a resonator or x-pipe. You lose 2-4ft/lb if you don’t have one or the other. That’s means you should NOT replace your resonator wth a y-pipe like the OP asked. |
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09-15-2017, 01:12 AM | #11 |
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My car has a muffler delete and resonator delete now and it sounds great, but still not loud enough. Planning on removing the secondary cats soon and see how it sounds.
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09-15-2017, 02:33 PM | #12 | |
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09-15-2017, 05:47 PM | #13 | |
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As above poster mentioned, 2ndary delete + resonator delete paired with 135i back box is one of the most popular combo for this platform of cars with N52/N51s.. it will not add *drone* like you've mentioned and I can comment on this because I have the exact setup mentioned above. So in another word, "First hand feedback as an owner". |
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125i, 135i, exhaust, muffler, resonator |
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