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BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications Remus 540i exhaust

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      09-23-2020, 08:44 PM   #1
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Remus 540i exhaust

Hey anyone with the Remus exhaust know the measurements of the tips? Mainly the exhaust outlet? Looking to get some tips that don't say Remus on them.
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      09-24-2020, 09:40 AM   #2
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I'll check with REMUS, congrats on the axle back
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      09-24-2020, 11:16 AM   #3
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Quote:
Originally Posted by mike@x-ph.com View Post
I'll check with REMUS, congrats on the axle back
Thanks Mike looking forward to the sound! Been looking at it for a while! 😎
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      09-24-2020, 02:40 PM   #4
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Quote:
Originally Posted by Highflyingbimmer View Post
Hey anyone with the Remus exhaust know the measurements of the tips? Mainly the exhaust outlet? Looking to get some tips that don't say Remus on them.
The size of each Remus exhaust tip is 4" per tip.
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      09-24-2020, 05:22 PM   #5
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Any exhaust shop should have those in stock and they're 4"
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      09-24-2020, 05:57 PM   #6
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Ok sounds good thanks!
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      10-08-2020, 07:21 PM   #7
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Quote:
Originally Posted by PetieD 7 View Post
The size of the Remus exhaust tip is 4" per tip.
Love the look of that exhaust on the car. How does it sound after some time to break it in? Any sound clips?

I had a Remus axle-back on my F30 340i and loved the sound. It got a little deeper after a while. Considering the same for my 540i.
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      10-09-2020, 09:29 AM   #8
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Sound clip please
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      10-10-2020, 11:56 AM   #9
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Quote:
Originally Posted by mike@x-ph.com View Post
Sound clip please
Here is a 3min clip of my 2017 F30 340i M sport with Dinan stage 1 tune. Includes stock exhaust on cold start then sport mode, Remus axle-back exhaust on cold start and sport mode, and last my prior E90 M3 stock exhaust. Sound doesn't compare to the M3 but I assume the 340i and 540i w/Remus axle-back would sound similar since it's the same engine. Apologies for the link but I don't have another way to host.

Mike - this is the exhaust you sold me in 2017. Loved it but no longer have the car.

https://www.smugmug.com/gallery/n-jtMVsq/i-xVFhqgk/A
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      10-10-2020, 01:21 PM   #10
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Quote:
Originally Posted by tsbrown View Post
Here is a 3min clip of my 2017 F30 340i M sport with Dinan stage 1 tune. Includes stock exhaust on cold start then sport mode, Remus axle-back exhaust on cold start and sport mode, and last my prior E90 M3 stock exhaust. Sound doesn't compare to the M3 but I assume the 340i and 540i w/Remus axle-back would sound similar since it's the same engine. Apologies for the link but I don't have another way to host.

Mike - this is the exhaust you sold me in 2017. Loved it but no longer have the car.

https://www.smugmug.com/gallery/n-jtMVsq/i-xVFhqgk/A
Sounds great, and the tips are so much nicer than stock.
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      04-07-2021, 10:07 AM   #11
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Anyone know how much the Remus is to install on a G30? Ball park?
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      04-12-2021, 11:02 AM   #12
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I have 2021 540i, if I change the mid pipe and exhaust will the engine light come out?
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      04-12-2021, 05:51 PM   #13
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It should not. Are you concerned due to smog or just visual representation in the dash?

Front cats are..well, in the front, and the secondaries are just before the mid, so you should be fine.
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      04-13-2021, 12:14 AM   #14
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Originally Posted by Ron1n View Post
It should not. Are you concerned due to smog or just visual representation in the dash?

Front cats are..well, in the front, and the secondaries are just before the mid, so you should be fine.
I'm just concern about visual representation in the dash and afraid to lose HP bro. Cause I been heard that if the light comes out it may lose the hp. Right now I changed my downpipe, it seems totally ok.
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      04-13-2021, 12:15 AM   #15
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Unless he/she is in EU and had the particulate filter.
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      04-13-2021, 10:42 AM   #16
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Quote:
Originally Posted by chenyu123 View Post
I'm just concern about visual representation in the dash and afraid to lose HP bro. Cause I been heard that if the light comes out it may lose the hp. Right now I changed my downpipe, it seems totally ok.
Nah, you'll be fine.
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      04-13-2021, 12:59 PM   #17
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Originally Posted by RonronEG View Post
Unless he/she is in EU and had the particulate filter.
YES i HAVE GPF
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      04-13-2021, 11:04 PM   #18
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Quote:
Originally Posted by chenyu123 View Post
YES i HAVE GPF
So unless you get the hardware and/or coding to disable the pressure sensor for the GPF you should probably leave them in and look at a GPF back or axle back exhaust.
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      06-12-2021, 05:20 AM   #19
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Quote:
Originally Posted by Ron1n View Post
It should not. Are you concerned due to smog or just visual representation in the dash?

Front cats are..well, in the front, and the secondaries are just before the mid, so you should be fine.
I think the 540i only has 1 cat and that's the Downpipe. No more Downpipe pre cats to midpipe main cat.
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      06-12-2021, 05:22 AM   #20
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Originally Posted by G30540SE2017 View Post
Anyone know how much the Remus is to install on a G30? Ball park?
It takes me no more than 1 hour to swap a single, cat back, exhaust. A shop will prob charge 1-2 hrs.
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      06-12-2021, 05:28 AM   #21
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Quote:
Originally Posted by chenyu123 View Post
I'm just concern about visual representation in the dash and afraid to lose HP bro. Cause I been heard that if the light comes out it may lose the hp. Right now I changed my downpipe, it seems totally ok.
Changing your midpipe (resonator) and muffler won't throw a code. If you change out your Downpipe with a catless or low cell count High Flow unit, you might throw a code. I don't know if BMWs go into limp mode and dump a bunch of fuel if you throw that code though. I do know that if you get a tune you can stop that sensor from initializing.

If your Smog guy just does the OBD scan, you will need to either flash a stock tune, or put in some spacers and turn on that sensor for it to be ready. If the shop is old school and hooks up the sniffer then you're better off swapping the stock downpipe in and flashing a stage 1 or stock tune to protect the engine.
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      07-07-2021, 09:28 AM   #22
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Quote:
Originally Posted by 540iSUP View Post
Quote:
Originally Posted by chenyu123 View Post
I'm just concern about visual representation in the dash and afraid to lose HP bro. Cause I been heard that if the light comes out it may lose the hp. Right now I changed my downpipe, it seems totally ok.
Changing your midpipe (resonator) and muffler won't throw a code. If you change out your Downpipe with a catless or low cell count High Flow unit, you might throw a code. I don't know if BMWs go into limp mode and dump a bunch of fuel if you throw that code though. I do know that if you get a tune you can stop that sensor from initializing.

If your Smog guy just does the OBD scan, you will need to either flash a stock tune, or put in some spacers and turn on that sensor for it to be ready. If the shop is old school and hooks up the sniffer then you're better off swapping the stock downpipe in and flashing a stage 1 or stock tune to protect the engine.
Thank you bro. I did figure it out. it's require to coding
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