04-15-2017, 09:30 AM | #1 |
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Will Downpipe Cause Drone at Highway Speeds?
Hey Guys,
I just picked up a 340i with MPPSK. Really impressed with the car overall, and loving every minute of it. I would like to get a bit more aggressive sound out of it, while still having the option of quieter exhaust in the Comfort mode for long drives. For those that have done it, is there a noticeable difference in additional noise / drone with a downpipe when cruising along on the highway in Comfort mode in the 8th gear? I do take longer trips, and would hate having to be in lower gear to eliminate drone. |
04-15-2017, 09:35 AM | #2 |
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My vrsf doesn't. Sounds mean as hell especially with res delete.
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04-15-2017, 06:16 PM | #4 |
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04-15-2017, 06:17 PM | #5 |
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Fuck no
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2015 335i Msport/6 JB4/EWG/E30/VRSF DP/ER CP/ VRSF Race Exhaust/ Injen Intake/Verde Axis 19x8.5/9.5 245/35/275/30 Conti Extreme CS/ H&R Sports / Motorsport Hardware Stud Conversion
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04-15-2017, 09:23 PM | #6 |
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04-17-2017, 06:23 AM | #8 |
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AW F30 may be able to help
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04-17-2017, 11:38 AM | #9 | |
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04-17-2017, 06:20 PM | #10 |
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Get a proven brand (VRSF, VM or Evolution Racewerks) and you wont get any drone
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04-17-2017, 09:32 PM | #11 |
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Thanks, guys. I guess now I just have to decide if I'm OK voiding the warranty with the downpipe. I've read about removing JB4 for dealer visits - obviously not something one would do with a downpipe.
Called one of the local dealers, and they even advised against a cold air intake for the sake of ensuring warranty coverage if something happens with the powertrain. |
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04-18-2017, 06:09 AM | #12 |
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I've yet to install mine, I'm waiting to hit 1500 miles to ensure I don't have a lemon. However, I've heard this body style is one of the easiest to replace downpipes on. An hour or less.
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04-18-2017, 09:06 AM | #13 | |
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04-20-2017, 04:22 PM | #15 |
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04-20-2017, 04:23 PM | #16 | |
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You can always call them and ask before bringing the car for service
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04-25-2017, 02:28 PM | #18 |
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05-02-2017, 09:38 PM | #20 | |
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An aftermarket catless downpipe is certainly Better performing and better sounding then the stock one |
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05-03-2017, 07:06 AM | #21 | |
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05-03-2017, 07:16 AM | #22 |
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To answer the thread question, I run ER dp, stock midpipe and AWE axelback and have absolutely 0 drone on the highway. 2900-3200ish rpm will drone but that is all.
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