I'm absolutely doing all of this. A series would be awesome!!!

Quality video, I love the sit and talk format. Hope to see more content like this down the road. Not enough e46 vids like this.

I think one thing we all can agree on is that we all would like a complete series on your build. We would love to learn from you and avoid silly mistakes we would make when we mod ours. Please keep that coming!

I have owned two E46 M3s but now have a 323ci for commuting to work. Can't fault the 323ci, lovely drive with manual gearbox 😊

This was great! Had my 323i for just over a year and got it running good and want to turn it into a track car so this series is perfect. Based in the UK

I really want to do this to my 323ci, I would love an English series on this, over the next 12months or so we intend to start a Motorsport based youth project at our church. So to learn stuff like this and show our youth that they can learn to do stuff themselves would be awesome

This also works for M54B25 as well. With M54B30 injectors and MS45.1 engine control you can run E85 easily.

Please do! I have a 323ci that I'd like to squeeze a bit more power out so a series would be awesome!

This is an outstanding amount of information I have a 1999 323i I’ve been working on and I love it! Thank you for sharing your work!

It would be awsome to see a series of videos like this from you. I like the way you explained step by step what is needed. Keep up!👍

This is great, looking forward to more on the e46 323!

Brilliant!! I have a e46 touring 323. I did the M54 B30 swap with the USA "s52" intake came and a aggressive exhaust port on a M52Tu head. ( I think the m25 tu is a better head) But I have been doing a lot of tuning with the Ms 42 DME. It's very very similar to the ms43 that everyone seems to love so much. I really only found a handful of little differences in maps. I would understand the most confusing thing for everybody is that all the acronyms are in German. So where is the ms-43 would say something like inj cyl 1.. The ms42 would say KF_Z_1 and they are the same map but the ms42 kept it in German saying kugelfischer cylinder 1. I found it very important to match the intake manifold size volumes in the map and airflow section. And of course the Lambda value sections And as far as the throttle bodies are concerned I would not worry too much if you measure at the for the narrowest portion of the 3 liter intake manifold throttle body is 2.7 in and the TU is 2.6in. By mistake when rebuilding my engine I ordered the M54B30 throttle body gasket and they were practically identical. Yessir the 3 liter air mass meter is much much larger but then it comes down to almost the exact same size at the throttle body. Yes the three liter air mass meter will handle up to 1200 mg per stroke. And the 2.5 liter air mass meter will handle up to 800 mg per stroke. But the M54 B30 at Full Throttle is about 600 mg per stroke. So even then you're not really gaining much by changing air mass meters.

Thank you for sharing your knowledge. I am on a similar road since i recently upgraded my 328ci with B30 intake, B30 cam, headers and for some reason i just changed to B30 injectors. I already played around and got familiar with RR and RR logger, added nice pops and bangs and stuff and of course i have seen your post about the LC :) Next thing will be remapping, the car runs fine and definately has decent power but from my logs and buttdyno i feel that there is still quite a bit potential to squeeze. Thanks again, excited for more...greets from Germany, Tommi

m54b30 airbox is also quite a bit less restrictive than the one on a m52b28 or m52b25

I actually done it kept the injectors from the b30. Inlet manifold from b30. Throttle body and intakeboot and maf. I haven’t changed the ecu to b30 it’s currently running on a performance map for the m54b25 that was already making 208hp but at the moment she has loads more torque and much more to give at top end she just needs another map!

Thank you vary much for your input, I have a 2000 bmw 323i in mint condition with only 104000 original miles, but I would like to like to get more hp out of her... Looking forward to watching your next episode.

We need More! Great content! M52tu owner

Do it! Do it!

Please door more on this car just bought a e46 323ci need more power for drift and want to learn to tune in house

These are good reliable mods, however to say you can do it for 200 euros is unrealistic. The B30 Camshaft alone will cost that much, the manifold, adapter plate and a new set of gaskets about the same again. You'll probably need various new parts like a new CCV and possibly new intake boot as well as these all get brittle with age and break easily on removal. Add another 100 bucks. Most people will need their remap doing professionally. Probably 400+ bucks. I'm not saying I wouldn't do these mods, but people need to be aware realistically how much it is going to cost because it may end up quicker an easier just swapping in a 330i engine.

I'm currently running an e46 323i 1999 manual sedan in the same titansilber metallic colour. However I haven't changed anything on the engine so I would like a step by step tutorial and would gladly improve my car even further.

Awesome well explained video, now go to ebay headers, stay catless, a proper CAI and you could reach 235 on this b25!

Yes please!! Looking forward to full explanation in English.

More more more!! I have a '98 323i and I'm keen to get some more oomph out of it. I live in NL by the way, so could I come by to borrow some of your remapping knowledge?😉

Ja maak meer video's. Super interesting 👍

I would like to see a video that shows how to tune from using the program all the way from stock to finished product

Ty man im wayy late to.the video.. lol im frum the future!! So i have a 03 325xi m54b2.5 Ive invested much 2 keep it going so im stuck wit it.. i want to do unequal length headers.. they dont make em, so my idea is run a header an a stock manifold to create the subaru sound.. dont care about gains.. atleast frum that.. i want low/mid range power nore than ne thing.. hard 2 achieve it seem.. im determine 2 not go turbo or s charger.. it is only my daily.. i jus want to improve the comfy 5speed fun of this vehicle an make it sound better.. that sweet bimmer noise wit some subaru sound.. an jus enjoy driving like i stole it everyday.. ive had fast hondas over my time.. but i love this car an have way 2 much on it.. to part.. but on low budget.. wish 2 achieve gains.. nos isnt wanted much but laterdays may do a 75 shot.. but really i want low mid power so i guess more torq.. please help!! Advice appreciated ty

Great content! M52tu gains! I’m considering doing this in the future but will have to educate myself through the links. Thank you

Very helpful video, please make more like these

Awesome info man thank you!

Excellent, thanks for the info!

What do you think about getting a performance exhaust manifold? Schmiedmann for example? Is it worth something in this setup?

Bumping an old vid, but.. would the m54b30 intake cam need to be grinded down to fit to the m52tub25?

Hello! Can you make a video how you tune it to 220bhp? Thx mate

Nice Aerospace 😁

Where can I buy the adapter plate for the throttle body ?

Quick question. Do you recon it would work for an m54b22 as well? (Although I could just fit an b30 throttle body) but as far as I know the m52tu has bigger bore or travel or something?

Do you have a tune file? I have all of these parts ready to go on my m52tu25 with the ms42 dme, I would be FOREVER grateful if you could send your tune or help me get the tune on my ecu. Thanks for all of the info and sweet build

nice job man, I have a question hope you can help me, I have a m52TU b23 engine, I want to make a b30 stroker, the harness that I have comes from an m54, the question is ... can I use the m54 harness for the ecu s42? ... another question is ... with the m54 harness and the ecu s42 will work the throttle body of the b30 m54? somehow the ecu s42 will work the throttle body of m54?

Do you know if you could put b30 intake cams into a b22?

did you have to modify the vanos gear on the intake cam or was it a direct fit

Would the same apply to the weaker m52tub20? Around 30 hp increase?

If a 323i can get to 220 how much can a 328i get to?

So your engine doesn't have a DISA? Ta

Bedankt voor de informatie, ik ga zeker proberen. Ik heb bmw e39 met m54b22 motorblok en ik ga voor een m54b30 cam en intak manifold moet ik wat met ecu doen opnieuw programmeren of is het plug en play alvast bedabkt👍

How did you go about modding the camshaft?

YES! Please

Hey leuke video! Ik heb een 323i maar ben zelf niet handig met auto’s. Zou jij dit voor me kunnen en willen doen? En voor hoeveel dan? Laat maar weten als je er interesse in hebt. Groeten van een mede e46 fanaat :)

Hello ! I have a few questions about the build i would be pretty happy if i could talk to you about it… if you still check your comments

Has anyone ever tried an m60 throttle body on there car . Would that give more air flow

Zou je deze mods kunnen doen voor een m54b22

Hey, ik heb een m52tub20 met een m54b25 inlaatspruitstuk. Als ik nu een m54b30 inlaatspruitstuk nstalleer, zou dit verschil uitmaken? En zo ja, waar denk je aan, meer nm onderin of hp bovenin? Grt!

Hi! Great stuff. Does changing the intake cam increase or decrease low-end torque? I have this engine in my Land Rover Defender so top end is not really a thing for me ;-) But bottom to mid range is! Thanks

Ecu settinges romraider video?

Hey there! thanks for sharing. Could you please tell me which afr meter did u use? I cant find one below 500€

Hey goedeavond Neem aan dat u Nederlander bent..? Ik heb zelf een facelift bmw e46 325i Ook m54 geloof ik. Kan ik dan zonder adapaterplate een m54b30 intake en intake cam nemen en ik zag op ebay een ecu voor m54b25 met 224 pk Ik heb voor nu de 192 pk Bj 2002/05

B30 cam? B30 manifold? B30 manifold? All 200 euros? Impossible... Tell me where please.... 220 without headers its Impossible

Yes English se

What about exhaust system?

hi had you needed to modify c_cor_cam_in_ref or c_fac_cam_sp_in_isapwm_min?

Ik ben niet zo handig. Heeft iemand zin en tijd dit met mij samen te doen bij mijn 323i? 😁