B48 exhaust

iwantotlearn · 01-09-2023, 02:13 AM

Hello,

Did anyone with a B48 engine did something to their exhaust?
I was thinking to do a resonator delete to be a little louder but I'm afraid it will drone and stuff.

I know its a 4cyl and would not sound like a v8 but still, feels too quiet.

Would really appreciate your advice/experience. Also if you have videos of before and after please share them

Thanks in advance!

Moshe911 · 01-10-2023, 08:26 AM

Hi,

Follow the steps with bimmercode and you will have better sound 😁

1. Open the exhaust flap with bimmercode app 2. Pull the 7.5A fuse on the far left side of the fuse panel in the trunk, and the flap will stay open indefinitely.
3. After the fuse is pulled, you do not need to have the OBD connector attached, or the app running, to keep the flap open.

I hope you like 😉

iwantotlearn · 01-13-2023, 02:04 AM

Quote:

Originally Posted by Moshe911

1. Open the exhaust flap with bimmercode app 2. Pull the 7.5A fuse on the far left side of the fuse panel in the trunk, and the flap will stay open indefinitely.
3. After the fuse is pulled, you do not need to have the OBD connector attached, or the app running, to keep the flap open.

I hope you like 😉

Hello,

Already did that but I used bimmerlink to open the flap (didn't know you can do it with bimmercode?).

I'm not satisfied enough with the sound so far, don't want it to be absurdly loud but a little louder.

Cheers!

WretchedRefuse · 01-13-2023, 01:58 PM

AFAIK, you need Bimmerlink to open the valve. Bimmercode won't do that for you. But somebody please correct me if I'm mistaken.

I3LaZeN · 01-13-2023, 02:05 PM

I did a resonator delete on my b58. Theres zero drone. The g30s are pretty heavily insulated.

iwantotlearn · 01-16-2023, 01:28 AM

Quote:

Originally Posted by I3LaZeN

I did a resonator delete on my b58. Theres zero drone. The g30s are pretty heavily insulated.

Cool, thanks for the info

EZname · 01-25-2023, 04:46 AM

Quote:

Originally Posted by I3LaZeN

I did a resonator delete on my b58. Theres zero drone. The g30s are pretty heavily insulated.

Do you like the sound of your car now (after resonator delete)?

I3LaZeN · 01-25-2023, 02:06 PM

Quote:

Originally Posted by EZname

Do you like the sound of your car now (after resonator delete)?

Yea definitely!
Heres a video of how it sounds now in comfort and sport mode.

https://youtu.be/4oeH9uYnYec

buddyboy · 01-25-2023, 03:49 PM

Quote:

Originally Posted by I3LaZeN

Yea definitely!
Heres a video of how it sounds now in comfort and sport mode.

https://youtu.be/4oeH9uYnYec

B58 sounds a lot different from the OP's B48 though!

iwantotlearn · 01-27-2023, 01:19 AM

Quote:

Originally Posted by buddyboy

B58 sounds a lot different from the OP's B48 though!

Indeed!

I don't have a problem with that tho, sounds good.

I'm a little dissapointed that a few of them B48 owners are not sharing their experiences.

I3LaZeN · 01-27-2023, 05:45 PM

Quote:

Originally Posted by buddyboy

B58 sounds a lot different from the OP's B48 though!

Yea i know but i figured I share the b58 sound for some kind of reference.
I didnt want anything loud and obnoxious at all.

iwantotlearn · 02-03-2023, 01:58 AM

Quote:

Originally Posted by I3LaZeN

Yea i know but i figured I share the b58 sound for some kind of reference.
I didnt want anything loud and obnoxious at all.

Yeah, same for me. Nothing too crazy just a little louder

FloridaMan22 · 02-10-2023, 11:50 PM

Been wondering this exact thing since I got this car. I had a muffler delete on the 4 banger Camaro and it actually sounded pretty good. Just haven’t really found any vids online with the g30 b48 /:

ALG30 · 02-11-2023, 12:26 PM

http://youtu.be/i3rs5HEne1s

B48 engine . Catted downpipe , Resonator delete , intake and GThause exhaust. And I also have the flaps permanently open.

iwantotlearn · 02-13-2023, 03:43 AM

Quote:

Originally Posted by ALG30

http://youtu.be/i3rs5HEne1s

B48 engine . Catted downpipe , Resonator delete , intake and GThause exhaust. And I also have the flaps permanently open.

Sounds awesome!

I have a few curiosities

Did you do all the mods at once?
Did you notice any dron after resonator delete?
Any CEL after catted downpipe?

thanks!

ALG30 · 02-14-2023, 10:39 AM

Quote:

Originally Posted by iwantotlearn

Sounds awesome!

I have a few curiosities

Did you do all the mods at once?
Did you notice any dron after resonator delete?
Any CEL after catted downpipe?

thanks!

No. Exhaust took a bit to receive , everything else I did it within a month. If you just do a resonator delete without touching the stock exhaust , you won’t get any dron, but you will get some sort of dron after getting muffler delete. And unfortunately yes, after a few days, cel popped up because of the dp so I just removed it and it’s just sitting in my garage.

iwantotlearn · 02-17-2023, 02:00 AM

Quote:

Originally Posted by ALG30

No. Exhaust took a bit to receive , everything else I did it within a month. If you just do a resonator delete without touching the stock exhaust , you won’t get any dron, but you will get some sort of dron after getting muffler delete. And unfortunately yes, after a few days, cel popped up because of the dp so I just removed it and it’s just sitting in my garage.

Thanks a lot!

Is there any chance you have a video with before and after resonator delete? That's what I'm most interested in.

Cheers!

ALG30 · 02-21-2023, 07:33 AM

Unfortunately I don’t. I only have after.

iwantotlearn · 02-21-2023, 08:26 AM

Quote:

Originally Posted by ALG30

Unfortunately I don’t. I only have after.

Do you have an after resonator delete? Could you please share it if so?
I will do mine after anual vechicle inspection but I'm so curious.

Ferhat · 02-23-2023, 03:11 PM

I've a 530i B48 engine and did the resonator delete, there is no drone but the sound is not satisfying enough..
I'm thinking to put a catless downpipe in next month with a stage 2 tuning.

iwantotlearn · 02-24-2023, 02:05 AM

Quote:

Originally Posted by Ferhat

I've a 530i B48 engine and did the resonator delete, there is no drone but the sound is not satisfying enough..
I'm thinking to put a catless downpipe in next month with a stage 2 tuning.

Thanks for the feedback. Could you please post a video with the resonator delete?

Also crossed my mind that if the resonator delete doesnt rise up to expectations I will join the catless downpipe or catted downpipe.

Rattlesnake86 · 06-17-2023, 02:50 AM

Quote:

Originally Posted by iwantotlearn

Thanks for the feedback. Could you please post a video with the resonator delete?

Also crossed my mind that if the resonator delete doesnt rise up to expectations I will join the catless downpipe or catted downpipe.

A catless downpipe is not an option in Europe. You will not pass the inspection anymore.
A catted one is not legal either, but I don’t think there will be problems passing the inspection though.

01-09-2023, 02:13 AM	#1
iwantotlearn Private 27 Rep 81 Posts Drives: 520i Join Date: May 2021 Location: Romania iTrader: (0)	B48 exhaust Hello, Did anyone with a B48 engine did something to their exhaust? I was thinking to do a resonator delete to be a little louder but I'm afraid it will drone and stuff. I know its a 4cyl and would not sound like a v8 but still, feels too quiet. Would really appreciate your advice/experience. Also if you have videos of before and after please share them Thanks in advance! Last edited by iwantotlearn; 01-09-2023 at 02:19 AM.. Reason: videos
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01-10-2023, 08:26 AM	#2
Moshe911 Registered 2 Rep 4 Posts Drives: BMW 530i xDrive G30 Join Date: Jan 2023 Location: Romania iTrader: (0)	Hi, Follow the steps with bimmercode and you will have better sound 😁 1. Open the exhaust flap with bimmercode app 2. Pull the 7.5A fuse on the far left side of the fuse panel in the trunk, and the flap will stay open indefinitely. 3. After the fuse is pulled, you do not need to have the OBD connector attached, or the app running, to keep the flap open. I hope you like 😉
	Appreciate 1 FlyingWombat243.50 Quote

01-13-2023, 01:58 PM	#4
WretchedRefuse Lieutenant 209 Rep 495 Posts Drives: 2020 BMW M550i Join Date: Feb 2022 Location: Michigan iTrader: (0)	AFAIK, you need Bimmerlink to open the valve. Bimmercode won't do that for you. But somebody please correct me if I'm mistaken.
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01-13-2023, 02:05 PM	#5
I3LaZeN Lieutenant 508 Rep 501 Posts Drives: BMW G30 540i Join Date: Jul 2019 Location: NY iTrader: (0)	I did a resonator delete on my b58. Theres zero drone. The g30s are pretty heavily insulated.
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02-10-2023, 11:50 PM	#13
FloridaMan22 New Member 14 Rep 17 Posts Drives: 2018 530i Join Date: Jan 2023 Location: Florida iTrader: (0)	Been wondering this exact thing since I got this car. I had a muffler delete on the 4 banger Camaro and it actually sounded pretty good. Just haven’t really found any vids online with the g30 b48 /:
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02-11-2023, 12:26 PM	#14
ALG30 New Member 21 Rep 21 Posts Drives: 2021 530xi Join Date: May 2021 Location: NY iTrader: (0)	http://youtu.be/i3rs5HEne1s B48 engine . Catted downpipe , Resonator delete , intake and GThause exhaust. And I also have the flaps permanently open.
	Appreciate 2 FloridaMan2213.50 iwantotlearn26.50 Quote

02-21-2023, 07:33 AM	#18
ALG30 New Member 21 Rep 21 Posts Drives: 2021 530xi Join Date: May 2021 Location: NY iTrader: (0)	Unfortunately I don’t. I only have after.
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02-23-2023, 03:11 PM	#20
Ferhat Registered 0 Rep 1 Posts Drives: BMW G30 530i Join Date: Feb 2023 Location: Netherlands iTrader: (0)	I've a 530i B48 engine and did the resonator delete, there is no drone but the sound is not satisfying enough.. I'm thinking to put a catless downpipe in next month with a stage 2 tuning.
	Appreciate 0 Quote