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F30 BMW 340i Downpipe Install DIY

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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
Downpipe Gasket - www.ecstuning....
Vband 2.5" - www.ecstuning....
Vband 3" - www.ecstuning....
Bimmerpost Article - f30.bimmerpost...
Instagram 📸 ~ @nw.auto
#F30 #340i #B58
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Опубликовано:

21 авг 2024

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Комментарии : 93

@rmedina1886 Год назад

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.

@filsm140 8 месяцев назад

It's because people don't spend money on the socket and need to go at it with a wrench. Of course I will argue if you've done it before and have the finesse to take it out with the O2 still attached, it's obviously easier to remove/install it off the car.

@amorgator1345 2 года назад

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.

@NWAuto 2 года назад

Yeah definitely more than one way to do it. I see how that would make it easier

@sacars777 2 года назад

Wheels are looking crazy 🔥 🔥 🔥

@NWAuto 2 года назад

Thanks. I'll be making a video on the wheel upgrade soon. Looks much better now

@eddiegallardo8941 2 года назад

Awesome tutorial. Keep the uploads coming! #b58gang

@tslazer2247 2 года назад

Just did mine yesterday 😁

@NWAuto 2 года назад

Nice. Which downpipe did you go with?

@kennychavez4726 2 года назад

I’ve been waiting for this😍

@NWAuto 2 года назад

Good timing I guess. You doing this on your car?

@kennychavez4726 2 года назад

@@NWAuto I’m planning on buying a 335 f30 this summer partly due to your videos haha, but I’ve been following your b58 build for a while and been wanting to hear exhaust setups

@NWAuto 2 года назад

@@kennychavez4726 The 335 is fun and easy to modify. I wanna do a resonator delete before I do another exhaust video. The current setup is just way too quiet, so it would be a boring video

@TurcoDrives 2 года назад

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

@NWAuto 2 года назад

Nice. Thanks for the feedback

@sacars777 2 года назад

Love the content keep it up

@scottjohnson8316 2 года назад

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!

@NWAuto 2 года назад

I haven't, but I'm definitely gonna look into the new changes and reflash

@scottjohnson8316 2 года назад

Have you flashed new OTS map yet? Also weren’t you at one point running stage 1 WITH an aftermarket DP on? I’m asking because some people have been talking that the new maps lose a bit down low but gain mid range. And I like low end tbh. So I was wondering if my current v 2.1 stage 1 93 would actually be enhanced with a high flow catted DP, but staying at stage 1?

@NWAuto 2 года назад

@@scottjohnson8316 I ran stage 1 with aftermarket DP for only a few days before I flashed stage 2. I think the DP does enhance it. The car to me feels slightly more responsive with an aftermarket DP. And I haven't flashed the new map yet. Been snowing in my area so I'm not driving much

@scottjohnson8316 2 года назад

Ok so I admit after saying how I wanted to keep dp stock I gave in and got the evolution racewerks high flow catted DP. I got a great price on it and I’m figuring I may just keep my car at current stage 1 93 v 2.1 for a few reasons.....1. The new v 2.2 stage 2 93 map apparently has a lot of folks complaining about losing traction and going sideways...now I know it’s mostly in rwd cars ( I’m awd) but that doesn’t sound good and the tune may need some tweaks. 2. Also it seems that once PTF updates their OTS maps the previous versions are no longer available! I mean why not keep up the previous gen maps for at least a few months? I emailed them about it and they said I could find the previous map but I couldn’t....they are so vague in their answers. My only concern is someone once spoke about throttle closure when running stage 1 with aftermarket DP? I guess when there is overboosting in real cold weather? But what difference would It make if I went stage 2 and it overboosted ? So I don’t get that....

@NWAuto 2 года назад

@@scottjohnson8316 I think you should try out stage 2 and see if you like it. The jump from stage 1 to stage 2 will not be as big as the jump from stock to stage 1

@ganuv 2 года назад

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.

@NWAuto 2 года назад

Yeah I went with catted mostly because I didn't wanna deal with the smell. It still drives pretty well on stage 2 with catted DP since it is much less restricted than the OEM. And I haven't tried MHD yet. But I'm gonna do the xhp flash and that should help it feel more aggressive

@chrissamuel3714 Год назад

@@NWAuto you only get the smell idling with the windows down at a light or something but even then it isn’t a direct smell it’s only a hint of it it isn’t bad at all honestly much much less than what people were making it seem

@Ryan-uj1eo Год назад

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?

@skerdev29 Год назад

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 !

@NWAuto Год назад

I'm not sure that there is. But I would just put your exact car info in when ordering

@Likgoo 8 месяцев назад

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)

@NWAuto 8 месяцев назад

Two of my friends are running downpipes with no tune. It just makes the car slightly louder, but also throws a check engine light until you tune it. And you can go straight to stage 2 after the downpipe

@Likgoo 8 месяцев назад

@@NWAuto which brand high flow catted downpipe do you recommend with and without a tune?

@NWAuto 8 месяцев назад

@@Likgoo VRSF is solid and cheap. But more expensive ones like Evolution Racewerks will give you a nicer tone

@carlosdiez9857 2 года назад

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

@NWAuto 2 года назад

Thanks. It makes the car slightly louder and less muffled sounding. Also a little bit more raspy and makes the burbles more aggressive

@adnaansayeed7694 2 месяца назад

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

@NWAuto 2 месяца назад

This was Valvetronic muffler

@ciepularys Год назад

What are the benefits of this? Thanks

@NWAuto Год назад

You have to get a downpipe upgrade if you want to go past a stage 1 tune. It improved exhaust flow by being less restrictive than the OEM

@ciepularys Год назад

@@NWAuto thx

@ciepularys Год назад

@@NWAuto how much power can be made from 340i with mppsk exhaust, catless downpipe and an upgraded fuel pump with custom tune? And what kind of times for 1/4 mile, 0-100-200? Thanks

@TuneN2Jlew Год назад

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

@NWAuto Год назад

Should work for any. I think I got mine from ECS Tuning

@EricShoots 11 месяцев назад

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?

@NWAuto 11 месяцев назад

I'd have to be there to see. But try making sure it is aligned properly. Tightening the vband could help seal it perfectly. But don't force it too much if it doesn't feel like its working

@benjaminharris5730 9 месяцев назад

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

@NWAuto 9 месяцев назад

Yeah just get a new gasket

@louisvargas5902 Год назад

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

@NWAuto Год назад

You can try tuning it and see if it helps. But I removed my tune a few times and I didn't have that issue

@joshuamiller2089 2 года назад

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?

@NWAuto 2 года назад

It's not very loud. The cold start is the loudest part and even that isn't bad. I'm actually thinking of deleting one of the resonators to make it louder

@joshuamiller2089 2 года назад

@@NWAuto sounds good. I have an M240i and I have both resonators delete. I can't seem to find anyone who has an intake, catted downpipe, dual resonator delete, and valvetronic designs axleback. That's the exact setup i'm looking for. I might have to make a video when I do that.

@NWAuto 2 года назад

@@joshuamiller2089 Yeah I'd watch that. You can look at some of my videos when I still had a 335i. I ran AWE non resonated cat back exhaust with VRSF high flow DP. The cold starts were pretty loud. But it was perfect after it warmed up. I imagine the setup you're planning on doing will be about as loud as my old setup

@mevans8646 2 года назад

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?

@NWAuto 2 года назад

The downpipe will make it louder and also change the tone. Its noticeable during cold starts and aggressive driving or revs. What muffler do you have?

@mevans8646 2 года назад

@@NWAuto all I have at the moment is a double resonator delete. Stock everything else.

@NWAuto 2 года назад

@@mevans8646 downpipe will make it louder. Especially catless. And it will be required if you wanna tune past stage 1

@mevans8646 2 года назад

@@NWAuto yeah I’d be fine with stage 1 just for reliability (it’s my daily I plan on keeping for the next 5-6 years) I only want a downpipe for sound. Considering even catted it’s the cheapest exhaust mod outside of what I’ve already done to it. Just wanted to figure out if it was even worth it or if it didn’t make a huge difference in sound. These cars tend to be pretty quiet inside even with full exhausts.

@chrissamuel3714 Год назад

@@mevans8646 stage 2 is still more than safe for this motor as long as you do your updated maintenance which is the same for stage 1 ie. more frequent oil changes more frequent colder spark plugs changes things like that

@Me-mw6un 2 года назад

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

@NWAuto 2 года назад

You can try Matrix Integrated. But they do high flow catted only. No catless

@Me-mw6un 2 года назад

@@NWAuto have heard of them. I do have a high flow catted so that works 👍🏼

@christianadams1942 2 года назад

Will this void warranty?

@NWAuto 2 года назад

If something breaks and the dealer determines that it was caused by your mod then they will deny your warranty claim. But they will never just void your warranty. People who install a DP usually also tune it though

@sosyalant Год назад

how much clearance do I need to do this job? Can I do it on a ramp?

@NWAuto Год назад

I did this job on my friends 340i using a ramp. It can be done

@MuhammadKhan-pr3fi 2 года назад

Is your exhaust stock except the downpipe obviously?

@NWAuto 2 года назад

Valvetronic muffler and stock midpipe

@julyfishy392 2 года назад

I must be honest. A gapped the M340i in my scat pack challenger

@tv321123 2 года назад

I have no clue about the last gen F30s. But I saw a current gen M340 XD edge out my friends charger scat pack charger W/Catback/intake & walk from a stock 5.0 mustang current gen this weekend. No idea if the BMW had any bolt ons or a tune, but I was actually pretty amazed, did not expect to see that. I'm not a BMW guy but for a 6Cylender that thing was FKING fast.

@NWAuto 2 года назад

I'd like to line up against a scat pack

@julyfishy392 2 года назад

@@tv321123 Yeah theres so many factors that go into a race so unless u take it to the track its not that accurate and even then its still based on who launches better, weight, timing. But I did a 40 roll with a M340i the newer one he actually honked at me and rolled his window down, we went twice on his 3rd honk and he was in my blind spot for a bit then I was gone lol

@tv321123 2 года назад

@@julyfishy392 It was all impromptu highway rolls from about 60. Of all things my friend with the mustang bought the new M340 XD for his wife. He was going on about how she walks away from him in his mustang for the past few months. I did not believe it till I saw it, and that thing was FCKING moved for a 6.

@johnnyjohnz1992 2 года назад

Great video, i wonder if the vrsf downpipe benefit is just the 200 cell cat , it appears the oem and vrsf have the same dimensions. What do you think ?

@NWAuto 2 года назад

Thanks. The VRSF downpipe is half as restrictive as the OEM one. I noticed the low end torque improved slightly after adding it

@johnnyjohnz1992 2 года назад

@@NWAuto that good !!! I suspected that it would still be an upgrade , any thoughts on the cts turbo catted pipe ? Has a different type of style.

@Me-mw6un 2 года назад

@@johnnyjohnz1992 they are pretty similar just had mine installed

@scottjohnson8316 2 года назад

Idk I’m glad I kept my DP stock ( I almost did the CTS high flow DP , but at last minute trashed it ) ...although I appreciate your mods I think if a stage 1 340 raced a stage 2 340 ( assuming stage 1 only had tune and stage 2 only had time and DP ) it seems there would be a few car length between the two. No one would be ordering gapplebees ! Also I think about whenever ( or IF I do ) sell my car I think a lot of potential buyers might appreciate a car with little done to it? But that’s certainly an IF.....either way your vids are top notch. When you gonna try those 0-60’s without LC? What do think ? LC gives you .3-.4 ?

@NWAuto 2 года назад

I like the way the car drives with an aftermarket downpipe. It's less restrictive and you feel that. But I get what you mean about wanting to not modify too much. The value of my car is lower with the mods installed. And yeah I do those launches all the time, I just need to actually record them

@salvatrucho0960 2 года назад

Whats your 0-60 and hm HP your making?

@NWAuto 2 года назад

My 0-60 was 3.85 on stage 1 with VRSF DP. I haven't tested the 0-60 yet on stage 2, but I'd guess its just under 3.8. Current HP should be around 400 and torque around 440