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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications M340i Exhaust Setup/Mods?

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      05-20-2019, 08:06 PM   #1
NYC_340i
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M340i Exhaust Setup/Mods?

Curious to see if anyone has a undercarriage shot of the M340i so we can see what the exhaust setup is like.

I love my current setup in my 340i with a resonator delete. If I was keeping the car some downpipes and a Dinan exhaust would be perfection though.

From what I heard so far the M340i sounds like it slots in between a 340i with MPE and a 340i with MPPSK. I wonder if a resonator delete can be done or what an eventual aftermarket downpipe/muffler will sound like.
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Current: '16 340i xDrive EBII 8AT Mods: 30% tints, IND color matched front reflectors, M color grill inserts, rear lip spoiler, dual resonator delete, various coding, BMS Intake, JB+, M Performance Diffuser, 19" gunmetal Forgestar F14
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      05-24-2019, 09:14 PM   #2
Jadenkid22
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Quote:
Originally Posted by NYC_340i View Post
Curious to see if anyone has a undercarriage shot of the M340i so we can see what the exhaust setup is like.

I love my current setup in my 340i with a resonator delete. If I was keeping the car some downpipes and a Dinan exhaust would be perfection though.

From what I heard so far the M340i sounds like it slots in between a 340i with MPE and a 340i with MPPSK. I wonder if a resonator delete can be done or what an eventual aftermarket downpipe/muffler will sound like.

+1!! Someone share under carriage shots!!
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      05-25-2019, 12:23 PM   #3
RPM1123
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Quote:
Originally Posted by Jadenkid22 View Post
+1!! Someone share under carriage shots!!
Hey guys,

I made a post a couple weeks ago and took a bunch of exterior photos, including some exhaust shots from the ground.

Thread: https://g20.bimmerpost.com/forums/sh....php?t=1605994

Exhaust photos from album:


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      06-21-2019, 11:34 AM   #4
bimmer813
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A little update thanks to our friends over at RealOEM.com - The exhaust diagram for the M340!

As you can see, there are no secondary cats or resonators shown, just the back box. With how it's shaped, a muffler delete (or small replacement mufflers) would be an easy swap for any muffler shop.

Now for the downpipes...does anyone know the accuracy of RealOEM diagrams? I pulled the diagrams for the f30 340i and g20 M340i and they look identical...thoughts?
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