F30 BMW 340i Downpipe Install DIY

I show you how to install or replace a downpipe on an F chassis BMW with the B58 engine.

1. remove the airbox
2. remove the O2 sensors
3. disconnect the V-band clamp
4. disconnect the downpipe braket
5. disconnect the mid pipe/downpipe clamp
6. disconnect the mid pipe support nut
7. drop the mid pipe
8. remove the downpipe
9. insert new gasket to new downpipe
10. reinstall everything



#F30 #340i #B58

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[rmedina]

You did good by removing the o2 sensors first. I really don't understand why other people leave them on while removing the oem. And they wonder why they're struggling.

[amorgator]

I would suggest leaving the v-band clamp on until you loosen the clamp connecting the down- and mid-pipe to make it easier to separate the mid-pipe from the down-pipe. If you disconnect the two nuts in the rear by the exhaust tips and the mid-pipe nut, you can pull the the exhaust tips back and twist a bit to pull the exhaust off the down-pipe. Then remove the v-band and two down-pipe nuts on the trans. It was really difficult to do this with the down-pipe loose from everything. Just did this yesterday on my F32.

[eddiegallardo]

Awesome tutorial. Keep the uploads coming! #b58gang

[Ryan-ujeo]

What’s the lubricant for? Do I need it? And do I need a new gasket and v clamp or can can I reuse the oem?

[scottjohnson]

Hey did you hear about new BM3 maps? Version 2.2 for all b58 applications came out 12/14. You’re the man for the review on that one!

[TurcoDrives]

Great vid bro. Looking to get mine done in the next few weeks.

[carlosdiez]

Great video. How much does the 200pp downpipe changes the sound of the exhaust?

[skerdev]

Hey bro nice video. Mind if I ask if there's a difference between xdrive and rear wheel when ordering a downpipe as I can't find any solid answer ? I got a f30 335xi. Cheers !

[Likgoo]

Currently have a B46 and not tuned. If the car is not tuned, would you recommend getting a high flow catted downpipe (for the sake of deeper tone and increased hp) or would I not notice a difference without the tune? Basically, would I notice any sound difference without the tune and if it’s worth the money to get the downpipe without complementing with a tune? Also, when the catted downpipe is installed, would you recommend going from stock to stage 2 or stock to stage 1 (bootmod3)

[DwaneSteezy]

Is the rest of your exhaust stock in this video besides the downpipe? Thanks

[TuneNJlew]

Will the gaskets and V bands work for any downpipe, or does it have to specifically be that brand? I ordered a 4.5 catless downpipe, and I just ordered the gasket and v bands to be safe

[EricShoots]

When re installing catless downpipe, I couldn’t get the downpipe fully seated all around the turbo. It was seated almost perfectly. Will putting on the vband and tightening it completely fully seat the downpipe to the turbo?

[mevans]

I currently have a resonator delete and want my car louder. I could barely tell a difference outside of the louder pops. I have a video on my channel showing this. Did this downpipe make a noticeable difference in cabin?

[Me-mwun]

I’m in the Portland area looking for a shop to do my Downpipe install? Do you have any recommendations

[benjaminharris]

so along with the downpipe i should just get the downpipe to turbo gasket? i don't see a need to get both the vband clips

[joshuamiller]

Now that you have this car paired with the valvetronic designs axleback, when you have the valve closed on the axleback, how loud would you say the car is, do you think it would get you in trouble?

[ganuv]

Catless is better for the flow and gives more power, the catted one is still restricted, for stage 2 it’s not very good, plus MHD is a better tune then BM3, I had both and MHD feels more aggressive.

[adnaansayeed]

Is this the mppsk exhaust? Or is this the m performance muffler (back box) with downpipe?

[louisvargas]

I installed the same downpipe on my 430i i have a muffler delete, no tune but i get a sputtering when I’m at low speeds or parked, do you think it’s cause it needs a tune

[kornchansuwan]

did you delete both resonator? and muffler ?