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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > I need help with my exhaust setup!
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      11-24-2020, 01:35 PM   #1
F230
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I need help with my exhaust setup!

I'm working with a local shop for an exhaust setup for my car but I am encountering an issue.

The car is a F30 318i with the B38 engine.

Number 1 was stock, I tried 2 and it sounded WAY too loud, so number 3 was created. The volume of number 3 is perfect but at low RPM(1500-2500), the sound is too choked and muffled. Pops and bangs are greatly reduced and almost non-existent.

How do I fix this?

Everything else is perfect. I just hate having almost no sound within that deadzone low RPM. It picks up great right after tho. I have also tried removing the resonator, but it is too raspy and felt a loss of low end torque.

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      11-25-2020, 12:48 PM   #2
Fronttwelv
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Quote:
Originally Posted by F230 View Post
I'm working with a local shop for an exhaust setup for my car but I am encountering an issue.

The car is a F30 318i with the B38 engine.

Number 1 was stock, I tried 2 and it sounded WAY too loud, so number 3 was created. The volume of number 3 is perfect but at low RPM(1500-2500), the sound is too choked and muffled. Pops and bangs are greatly reduced and almost non-existent.

How do I fix this?

Everything else is perfect. I just hate having almost no sound within that deadzone low RPM. It picks up great right after tho. I have also tried removing the resonator, but it is too raspy and felt a loss of low end torque.

Go back to #2 and go for a quieter muffler. Try a magnaflow or flowmaster.
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      11-25-2020, 07:06 PM   #3
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Quote:
Originally Posted by Fronttwelv View Post
Go back to #2 and go for a quieter muffler. Try a magnaflow or flowmaster.
Thanks! Will definitely do that.
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