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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > The “Perfect” B58 Build for a Daily Driver
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      10-06-2017, 01:50 PM   #23
bmw22915
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This is fantastic. Thanks for sharing. I think this might be my favorite 340i exhaust setup.
No problem! You don't have to ask me twice for a moment to show off my car
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      10-06-2017, 09:42 PM   #24
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Does the mid pipe fit the f36 440?
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      10-07-2017, 12:08 PM   #25
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Does the mid pipe fit the f36 440?
Yes, but with some extra work.

Unlike the f32, our f36s have extra x-bar framework underneath the car. I will upload a picture when I get home today, but the pipe will touch the x-frame and cause vibrations. To get around this, you can rotate the Midpipe a certain number of degrees to lift it off the x-frame, but it will cause your muffler to tilt downward. In turn, your tailpipes will be pointing downward. My shop cut off my tailpipes and rewelded them on at the correct elevation to fix this and I haven’t had a problem at all.
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      10-07-2017, 04:26 PM   #26
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Yes, but with some extra work.

Unlike the f32, our f36s have extra x-bar framework underneath the car. I will upload a picture when I get home today, but the pipe will touch the x-frame and cause vibrations. To get around this, you can rotate the Midpipe a certain number of degrees to lift it off the x-frame, but it will cause your muffler to tilt downward. In turn, your tailpipes will be pointing downward. My shop cut off my tailpipes and rewelded them on at the correct elevation to fix this and I haven’t had a problem at all.
1. Frame where midpipe will touch if not "properly" installed.

2. Where the tailpipes need to be cut and rotated to match altitude

This is what happened to me and how I fixed it. I can't say it will be the exact same for you

* this is an older photo, not of current setup.
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      10-07-2017, 05:05 PM   #27
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Any plans on putting it on a dyno?
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Originally Posted by bsas340i View Post
Any plans on putting it on a dyno?
I put my xdrive jb4/bms intake/ cg catted dp+cg 3.5" turbo back on the dyno and got 399 whp/429 wtq
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      10-07-2017, 10:30 PM   #28
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I put my xdrive jb4/bms intake/ cg catted dp+cg 3.5" turbo back on the dyno and got 399 whp/429 wtq
Ooooo interesting. I’d imagine Dinan Elite to be very similar.
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      10-10-2017, 09:18 PM   #29
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Originally Posted by bsas340i View Post
Any plans on putting it on a dyno?
Quote:
Originally Posted by bsas340i View Post
Any plans on putting it on a dyno?
I put my xdrive jb4/bms intake/ cg catted dp+cg 3.5" turbo back on the dyno and got 399 whp/429 wtq
Great numbers!
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      10-11-2017, 11:31 PM   #30
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Edit: Sound Clips Below!

3. BMS Intake

Part and Install: ~190$

I was hesitant to spend ~200 dollars for very small hp and tq improvements (if any at all). Buuuuut here I am. *As many others have pointed out, the sound alone is intoxicating. The sound of the turbo spooling up and the "whooshing" sound pleases the ears. *If sound is important to you, I would highly recommend. If not, I wouldn't worry about this mod. *I installed this myself in under 10 minutes.
I've also got the BMS Intake but I can barely hear the "whooshing" sound. I can't really hear it from your clip as well?
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      10-12-2017, 12:18 AM   #31
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I've also got the BMS Intake but I can barely hear the "whooshing" sound. I can't really hear it from your clip as well?
The whooshing sound is when you let off the throttle after giving her some gas to munch on. In the video, I am under hard acceleration which is why you cannot hear the turbo release pressure. Also, the exhaust overwhelms the turbo sound while under high load and sport exhaust (video was recorded using my crappy phone mic so it leaves out details in the sound).

I wouldn't say the intake creates an overly loud sound, but I immediately noticed it after installing the intake.

Do you have a tune with your intake? More boost = more sound
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      10-12-2017, 03:31 AM   #32
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Originally Posted by bmw22915 View Post
The whooshing sound is when you let off the throttle after giving her some gas to munch on. In the video, I am under hard acceleration which is why you cannot hear the turbo release pressure. Also, the exhaust overwhelms the turbo sound while under high load and sport exhaust (video was recorded using my crappy phone mic so it leaves out details in the sound).

I wouldn't say the intake creates an overly loud sound, but I immediately noticed it after installing the intake.

Do you have a tune with your intake? More boost = more sound
I have MPPSK, looking into getting downpipe and JB4
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      10-12-2017, 09:13 PM   #33
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I have MPPSK, looking into getting downpipe and JB4
Let me know if the JB4 changes your mind on your intake sound
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