01-07-2014, 02:24 PM | #23 |
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I don't have any video clips with the 328 muffler and the aFe downpipe but it sounds much better and a bit louder with the 335i muffler. I barely noticed an increase in sound from just the aFe downpipe alone.
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01-08-2014, 11:54 AM | #24 |
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Does anyone wants to try with a 335 M performance exhaust ? I'm thinking about doing it.
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2014 BMW 328i X-Drive Touring M sport, Mineral Grey
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01-11-2014, 12:04 AM | #28 |
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i had that like last year, 335i mufflers sound better...
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01-12-2014, 07:27 AM | #30 |
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02-05-2014, 10:52 PM | #33 |
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please someone do this conversion on a 428i (switching to stock 435 or M performance 435i). i much prefer the single dual exhaust set-up to the quad tip aftermarket options for the 428i. and i checked ebay....can't find an M sport 435i diffuser for the F32 yet.
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02-06-2014, 09:34 AM | #34 | |
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I didn't have any step by steps to go through but if you get a 335i/435i muffler that has been cut right where it is supposed to be cut (at the dimple in the piping) and then do the same with removing yours the effort should be minimal for any decent muffler shop. I used the muffler clamp designed for the 328i so when I go to put it back to factory its a 10 minute process. Keep in mind the piping is about 5mm larger in the 335i/435i compared to the 328i. Therefore I had the muffler shop remove then add about a 3" section to the muffler side of the 335i muffler so the 328i clamp could fit around it. The diffuser part was the easiest part, took 10 minutes to replace and was 6 or so 8mm/10mm bolts and a few plastic clips. Keep in mind, all of this is under the assumption that the muffler part of the exhaust for the 4 series is the same as the 3 series of course. Best of luck, its worth it. Sounds much better! |
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02-06-2014, 09:46 AM | #36 |
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02-24-2014, 11:35 PM | #38 |
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03-07-2014, 04:39 PM | #39 | |
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Nothing beats the symmetry. Had my eyes on the active autowerke but it would get to expensive with the shipping n customs+taxes.. so I got the only thing that I felt was worth it and had at least 80 mm pipes.
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Dec. 2022: Fully loaded Carbon Black G08 iX3 LCI M Sport Pro
Former: Glacier Ag. F31 328iA RWD M Sport oct. 2012, sold July 2022 | Sport Automatic | Adap. M Susp. | Pano. Moonroof | 20" ATS Racelight Grey w. Michelin PSS| M Sport brakes | Harman Kardon | Elec. Seats | PDC F&R | ACC Stop&Go | 335i MPE | Perf. Parts | |
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03-07-2014, 04:41 PM | #40 | |
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03-07-2014, 04:50 PM | #41 |
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I have no idea what will be the best solution. Since I've bought my car and will own it at least this generation out, I might go ahead and weld it. Or I'll have my friend make it work by tweaking the muffler pipe side.. all I foudnwas these threads and some german ones and that gave me the confidence to go ahead with the purchase and wing it when its crunch time
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Dec. 2022: Fully loaded Carbon Black G08 iX3 LCI M Sport Pro
Former: Glacier Ag. F31 328iA RWD M Sport oct. 2012, sold July 2022 | Sport Automatic | Adap. M Susp. | Pano. Moonroof | 20" ATS Racelight Grey w. Michelin PSS| M Sport brakes | Harman Kardon | Elec. Seats | PDC F&R | ACC Stop&Go | 335i MPE | Perf. Parts | |
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03-07-2014, 04:59 PM | #42 | |
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03-07-2014, 05:08 PM | #43 | |
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Edit: well judging from what you wrote and yoyr pics, I have to cut n weld the muffler pipe. How and what exactly did u do?
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Dec. 2022: Fully loaded Carbon Black G08 iX3 LCI M Sport Pro
Former: Glacier Ag. F31 328iA RWD M Sport oct. 2012, sold July 2022 | Sport Automatic | Adap. M Susp. | Pano. Moonroof | 20" ATS Racelight Grey w. Michelin PSS| M Sport brakes | Harman Kardon | Elec. Seats | PDC F&R | ACC Stop&Go | 335i MPE | Perf. Parts | |
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03-07-2014, 05:22 PM | #44 | |
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