05-09-2020, 03:55 PM | #1 |
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f90 m5 Stock exhaust question
Hey guys, I am about to pick up a f90 m5 in the next few months and had some questions regarding the exhaust.
does The stock exhaust with the chrome tips, backfire when put into sport plus, if not will a resonator delete cause it to backfire? please post videos if possible im going with the regular non-competition thanks! |
05-11-2020, 03:00 PM | #2 |
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It will burble even if it's the normal version as far as i know, however if you get rid of the resonators it will burble even more. I have the sport exhaust and it burbles quite a lot. you can find videos on youtube that compared the exhausts.
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05-12-2020, 03:28 PM | #3 | |
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ive driven the competition and it burbled like crazy but ive never driven the regular one |
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05-13-2020, 07:24 PM | #5 |
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The burbles and backfires are a byproduct of the tune file not the exhaust ... the exhaust can change the tone and db levels but can not by itself create the backfires and burbles (overrun).
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05-13-2020, 09:47 PM | #6 | ||
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05-14-2020, 01:34 AM | #7 |
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If one is leasing, then getting the OEM sport midpipe and keeping stock muffler should do the trick right?
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05-14-2020, 09:13 AM | #8 | |
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The M Performance is a completely different product as you know.
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05-14-2020, 10:48 AM | #9 | |
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If I didn't want to weld for the fear that welds would get flagged on the lease return, then I imagine I can just get the AWE midsection, or something like it for a similar effect? |
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05-14-2020, 10:51 AM | #10 | |
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FYI BMWFS uses third party inspectors and they NEVER go under the car nor would they know about a "reweld" with resonator placed back on.
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05-14-2020, 05:22 PM | #11 |
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05-21-2020, 01:29 PM | #13 |
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This is the setup I have and it is very loud and has tons of crackles and pops. It takes about 2-3k miles before it gets loud. The material in the M-Sport resonator needs to break down a bit. If I put the engine in Sport Plus, the pops and crackles are too loud to drive through my neighborhood without looking like a complete ass.
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05-23-2020, 07:25 PM | #14 |
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yes, same, i have the competition mid-pipe and this thing is loud AF when you shift, or let go the gas (when sport+), pops and sounds like a gun shot! haha
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05-24-2020, 02:44 AM | #15 |
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Mods done: Resonator delete with straight pipes Deleted h pipe with box between mufflers and capped mufflers Stage 1 EC tune 30% E85 Charcoal delete as well. Haven't done any down pipes n stuff yet. Also DA in Austin has mostly been 3500 plus and temps low to mid 80s so 0-60 n trap times haven't been that great. Best Street Time Best 0-60 2.9 Best 1/4 10.74 129.22 MPH Best 60-130 7.95 DA 3755 Temp 84 F With better DA and cooler temps it should easily do better numbers.
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05-24-2020, 09:42 AM | #16 | |
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0-60 2.79 60-130 7.21 1/4 Mile 10.41 @ 132.73MPH
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