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

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      04-30-2025, 10:04 PM   #1
samb23
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540i Sound advice

I need help trying to figure out what I want to do to my car. I have a muffler delete and tune on my 2019 540i but it doesn’t give me the sound I want. I can’t really afford a exhaust but I need more sound from my car. I also haven’t been able to put quad tips on my car because if I cut the valves it will throw a check engine light but I have to make adjustment to my tips in order to put my diffuser on. I’ve been wanting to do something about all of this for almost a month but just haven’t thought of a solution to any of this.
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      05-01-2025, 08:49 AM   #2
jiggyboiswagg
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Resonator delete.

Ppl here have done quad tips without comprising stock system, use search button!

I had an auto fabricator cut my tips off (valves intact) and adapt BMS quad tips, OEM exuast

Last edited by jiggyboiswagg; 05-01-2025 at 08:50 AM..
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      05-01-2025, 10:31 AM   #3
BWilson263
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Quote:
Originally Posted by samb23 View Post
I need help trying to figure out what I want to do to my car. I have a muffler delete and tune on my 2019 540i but it doesn’t give me the sound I want. I can’t really afford a exhaust but I need more sound from my car. I also haven’t been able to put quad tips on my car because if I cut the valves it will throw a check engine light but I have to make adjustment to my tips in order to put my diffuser on. I’ve been wanting to do something about all of this for almost a month but just haven’t thought of a solution to any of this.
You can code to have the exhaust flaps always open and do a resonator delete. That will give you a little more sound. Then later down the road look at either a Remus or MAD axle back exhaust.
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      05-02-2025, 07:40 AM   #4
samb23
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Quote:
Originally Posted by jiggyboiswagg View Post
Resonator delete.

Ppl here have done quad tips without comprising stock system, use search button!

I had an auto fabricator cut my tips off (valves intact) and adapt BMS quad tips, OEM exuast
I’ve been to about 4 muffler shops and they all said it’s not possible to put the tips on unless valves are taken off. Has gotten to be very difficult for something I thought would be pretty easy to complete.
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      05-02-2025, 02:50 PM   #5
jiggyboiswagg
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Quote:
Originally Posted by samb23 View Post
I’ve been to about 4 muffler shops and they all said it’s not possible to put the tips on unless valves are taken off. Has gotten to be very difficult for something I thought would be pretty easy to complete.
Pretty sure Sam_M550i has a post on it, as do I. It’s possible, the muffler shops you went to may not be skilled enough to do it. I will say it is not straight forward though given the sharp bends of the exhaust piping

Look for an auto fabricator or auto customization shop.
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      05-04-2025, 09:35 PM   #6
samb23
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Quote:
Originally Posted by jiggyboiswagg View Post
Pretty sure Sam_M550i has a post on it, as do I. It’s possible, the muffler shops you went to may not be skilled enough to do it. I will say it is not straight forward though given the sharp bends of the exhaust piping

Look for an auto fabricator or auto customization shop.
Thank you for responding I’ll try to look into it more.
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