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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 > B48 330i OEM Exhaust Upgrades
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      09-12-2018, 12:18 AM   #45
tpliquid
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I measured my at 80mm
2018 330i
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      09-18-2018, 10:53 AM   #46
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Just upgraded mine to 340 MPE today , perfect fit , not wielding required . Sounds mean ! You can do it
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      09-20-2018, 09:32 AM   #47
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Originally Posted by a358970751 View Post
Just upgraded mine to 340 MPE today , perfect fit , not wielding required . Sounds mean ! You can do it
video/sound clip please!!
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      09-20-2018, 09:38 AM   #48
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Quote:
Originally Posted by a358970751 View Post
Just upgraded mine to 340 MPE today , perfect fit , not wielding required . Sounds mean ! You can do it
video/sound clip please!!
Hi buddy
Just uploaded a cold start video to YouTube , I will upload an other video with revs later .

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      09-21-2018, 06:29 AM   #49
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niceee! looking forward to the other videos.

I don't care to add more sound, my f31 draws enough attention. However, I like the look of the single duals.
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      10-03-2018, 07:38 AM   #50
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any updates???
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      10-03-2018, 01:18 PM   #51
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Hi Guys,

Don't wanna hi jack this thread , but thought I share what I got done.

I got a new Downpipe made and manage to fit my exhaust from my n20. We had to cut a piece here n here but got it fitted.

The engine definitely sounds a lot better than the n20. Will try post a video. Let me know what you guys think.
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      10-03-2018, 01:23 PM   #52
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Do I have to upload the video to YouTube and share the link here?
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      10-03-2018, 01:25 PM   #53
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Do I have to upload the video to YouTube and share the link here?
Yup. Upload to youtube, post link here, and it will automatically imbed.
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      10-03-2018, 03:01 PM   #54
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      10-05-2018, 01:46 PM   #55
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What you guys think?

I only have 1 box. It kinda sounds like a straight pipe on wot😬
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      10-05-2018, 03:21 PM   #56
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Quote:
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What you guys think?

I only have 1 box. It kinda sounds like a straight pipe on wot��
It sounds pretty good, the cracks on upshift are awesome. It sounds like it would be a little bit untoned for my taste, but overall it seems like it sounds good
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      10-05-2018, 03:27 PM   #57
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Quote:
Originally Posted by rjdnyy224 View Post
It sounds pretty good, the cracks on upshift are awesome. It sounds like it would be a little bit untoned for my taste, but overall it seems like it sounds good
Thanks bro, yeah its quite loud if i floor it. The b48 engine does seem alot louder than the n20. i racing a guy the other night and when we put it down, he told me after the race. my car was so loud he couldn't hear his car and he had to watch the rev to change lol.

His car was fiesta ST 180 with Downpipe. lol

i did beat him thou
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      10-25-2018, 08:25 PM   #58
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bump.for 340 mpe updates on a b46/48
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      01-29-2019, 05:58 AM   #59
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Conversion done on my UK 2018 330i Msport Shadow Edition and went for a gloss black diffuser.

[IMG]http://img.photobucket.com/albums/v6...1DBADBB196.jpg[/IMG]

[IMG]http://img.photobucket.com/albums/v6...B8DBDF586B.png[/IMG]

Sounds mental
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      01-05-2020, 10:48 PM   #60
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In December last year I put a 340i MPE on my B48 330i. It was dreadful. I lasted a week and had to get rid of it. It was loud and droned. You also lose your valves. Waste of time in my opinion.
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      01-06-2020, 01:21 PM   #61
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Quote:
Originally Posted by ar44 View Post
In December last year I put a 340i MPE on my B48 330i. It was dreadful. I lasted a week and had to get rid of it. It was loud and droned. You also lose your valves. Waste of time in my opinion.
Why would you lose your valves?
The entire f30 series uses the same valve system, as far as i've experienced atleast.
Should be plug and play with your 330i?

Good to hear some other experiences though. Have not tried it myself on an f3x, but I swear some people claim their straight pipes "has no drone". They must be driving with earplugs in and their music turned up as far as it goes.
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      01-06-2020, 09:46 PM   #62
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the MPE exhaust for both b48 and b58 does not come with valve. But does come with a connector to short circuit it.
I have install B48 MPE on my 330i, it do not have any drone tho.
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      01-06-2020, 11:47 PM   #63
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      01-07-2020, 03:28 AM   #64
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go to a good local muffler shop they will give you options.

i went for a muffler delete and new pipes couldnt be happier!

in this vid, engine is already warmed and i didnt rev it so much, sounds much louder in person

View post on imgur.com
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      01-07-2020, 03:45 PM   #65
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Quote:
Originally Posted by patriotaki View Post
go to a good local muffler shop they will give you options.

i went for a muffler delete and new pipes couldnt be happier!

in this vid, engine is already warmed and i didnt rev it so much, sounds much louder in person

View post on imgur.com
Video is not visible. Please can you post again, I am eager to know what it sounds like?
Also, is yours a b48 x20i? Do you get any drone? And does it burble?

I really want a nice, deep exhaust note on my b48 320i ....nothing too obnoxious, but there when i put my foot down. Aftermarket exhausts are to pricey and completely out of the budget atm, so am considering a muffler delete...
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      01-09-2020, 03:07 PM   #66
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Quote:
Originally Posted by mechamanz View Post
Video is not visible. Please can you post again, I am eager to know what it sounds like?
Also, is yours a b48 x20i? Do you get any drone? And does it burble?

I really want a nice, deep exhaust note on my b48 320i ....nothing too obnoxious, but there when i put my foot down. Aftermarket exhausts are to pricey and completely out of the budget atm, so am considering a muffler delete...
View post on imgur.com


you cant hear alot from the video, it does burble/pop bang alot on upshifts/downshifts and when cruising at 3-5.5k revs

much louder in person
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