Remus exhaust failed

Var · 09-15-2019, 03:10 AM

I was driving, in 5th gear, in Mexico. Redlined 5th gear and tapped the upshift paddle. I heard a back fire, the car stuttered for a second, and it sounded like a piece of metal leaving the car. I pulled over and took a look around and didn't see anything out of the ordinary.

Upon starting the car up again, I noticed that the exhaust was in the loud mode, which it should never start in. I switched from comfort to sport and back a few times and there was no difference. So I figured something had gone wrong with the valve. Lo and behold it looks like the valve is physically all bent out of shape. It won't close all the way. It looks bent and might be missing something. I think the valve tried to close against a lot of air and failed because the ECU forces the valve closed for the top 3 gears

kern417 · 09-15-2019, 06:40 AM

I don't understand the gear comment. There's a gear where the flap can't open? And you think it shut when you shifted?

Var · 09-15-2019, 12:37 PM

In 6th, 7th, and 8th gear, the exhaust flap is forced closed

PURE340i · 09-15-2019, 01:24 PM

Eh, it happens man. Remus products are high quality. I'm sure they will warranty it.

PURE340i · 09-15-2019, 01:25 PM

Quote:

Originally Posted by Var

In 6th, 7th, and 8th gear, the exhaust flap is forced closed

I didn't know the valve closes in 6th, 7th, and 8th. I have the MPE and it deletes the valve i wonder what the purpose of the valve closing in higher gears at wot is set for.

Var · 09-15-2019, 09:46 PM

Ya but they're not gonna pay for labor to repair it. I spent the money upfront so I wouldn't have to deal with cheap exhaust issues. But anyway I'll figure it out. If I can get a partial refund I'll keep it and deal with it myself

jdg54 · 09-16-2019, 08:48 AM

Please update this thread with resolution. I've been considering a REMUS Catback.

E90ROXS · 09-16-2019, 04:02 PM

Are you running on JB4? I had the same issue with JB4. Switched to bm3 and everything is great now. Call you Remus and they will replace you with another part.

Var · 09-16-2019, 04:21 PM

Quote:

Originally Posted by E90ROXS

Are you running on JB4? I had the same issue with JB4. Switched to bm3 and everything is great now. Call you Remus and they will replace you with another part.

I'm running BM3 stage 2. Exhaust valve still closes in top 3 gears

09-15-2019, 03:10 AM	#1
Var Enlisted Member 9 Rep 39 Posts Drives: 2019 440i Join Date: Jul 2019 Location: San Mateo iTrader: (0)	Remus exhaust failed I was driving, in 5th gear, in Mexico. Redlined 5th gear and tapped the upshift paddle. I heard a back fire, the car stuttered for a second, and it sounded like a piece of metal leaving the car. I pulled over and took a look around and didn't see anything out of the ordinary. Upon starting the car up again, I noticed that the exhaust was in the loud mode, which it should never start in. I switched from comfort to sport and back a few times and there was no difference. So I figured something had gone wrong with the valve. Lo and behold it looks like the valve is physically all bent out of shape. It won't close all the way. It looks bent and might be missing something. I think the valve tried to close against a lot of air and failed because the ECU forces the valve closed for the top 3 gears Attached Images Last edited by Var; 09-16-2019 at 01:49 AM..
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09-15-2019, 12:37 PM	#3
Var Enlisted Member 9 Rep 39 Posts Drives: 2019 440i Join Date: Jul 2019 Location: San Mateo iTrader: (0)	In 6th, 7th, and 8th gear, the exhaust flap is forced closed
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09-15-2019, 01:24 PM	#4
PURE340i Banned 104 Rep 231 Posts Drives: 2018 BMW 340i & 2011 335d Join Date: May 2017 Location: California iTrader: (0)	Eh, it happens man. Remus products are high quality. I'm sure they will warranty it.
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09-15-2019, 09:46 PM	#6
Var Enlisted Member 9 Rep 39 Posts Drives: 2019 440i Join Date: Jul 2019 Location: San Mateo iTrader: (0)	Ya but they're not gonna pay for labor to repair it. I spent the money upfront so I wouldn't have to deal with cheap exhaust issues. But anyway I'll figure it out. If I can get a partial refund I'll keep it and deal with it myself
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09-16-2019, 08:48 AM	#7
jdg54 Second Lieutenant 95 Rep 224 Posts Drives: 2018 F30 340i Xdrive Join Date: Dec 2018 Location: Northern NJ iTrader: (0)	Please update this thread with resolution. I've been considering a REMUS Catback.
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09-16-2019, 04:02 PM	#8
E90ROXS Captain 225 Rep 677 Posts Drives: E90 Join Date: Feb 2012 Location: SJ iTrader: (1)	Are you running on JB4? I had the same issue with JB4. Switched to bm3 and everything is great now. Call you Remus and they will replace you with another part.
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