[Angel.M340i]

Hello guys!!

Looking for get my first mod for my 2024 BMW M340i. I’m not quite sure what to get. I had these parts in mind and I would like to know more on them.

- MST INTAKE
- Downpipe
- CTS TURBO INTAKE

Willing to take any suggestions as well!

[AM340iMiami]

Go with MST or Dinan Intake and an Active Autowerke downpipe. Get some 12 or 15 mm wheel spacers too. That’s a good start.

[jpowers36]

If only there was a search feature….oh wait…

[Angel.M340i]

Originally Posted by jpowers36

If only there was a search feature….oh wait…

Where I’m sorry? Just got this app and my car so pretty new.

[GA/\/\/\/\A_CT]

Originally Posted by jpowers36

If only there was a search feature….oh wait…

Chill bro, this is a forum to talk about engine mods. Why be that guy?

OP I think the Active Autowerke DP is a great mod with practically no downside except cost. It may add 20hp-ish to an untuned car. Dinan or MST intakes are pretty popular but mostly for sound and aesthetic though the popular belief is they will add +6-7whp.

Other than that, either an ECU tune or a piggyback will add 30-80hp depending on other mods.

[mike@x-ph.com]

Welcome OP

A downpipe is an easy option, in my opinion; get the active autowerke catted. It improves the airflow and sound and does not trigger the check engine light.

The intake is a little more complicated as it depends on your goals. If carbon fiber is a must, Eventuri is the way to go, in my opinion.

My favorite type is the open intake with a heat shield where you get the most sound and air flow while keeping the temps in check.

The MAD intake is the best value, in my opinion.

[Info@mad-us.com]

Do you plan to tune at all? If not I'd probably skip the downpipe because the gains just aren't there for the money unless you go with catless or a very high flowing catted but then you run into Cel issues.

I suggest these two mods.

MAD Intake - https://mad-us.com/mad-bmw-m340-m440...w-heat-shield/

Catback Exhaust - https://mad-us.com/mad-bmw-m340-m440...exhaust-system

[Sparch]

Save on the DP if you are not planning a tune.

Tune is everything on this car imho. Without one the ROI is not great.

My mods

. BMW MPE (Port Installed)
. AA CATTED DP
. DINAN CAI

HP gains moderate at best with this.

If you are hunting sound just look into an axle back exhaust instead and save yourself some cash, or maybe put those funds into WHEELS and SUSPENSION for a better return on investment.

[whofelt]

AA Downpipe and aFe intake, best combo in my opinion. https://afepower.com/afe-power-50-70...-pro-5r-filter

[Whysitcold]

Originally Posted by Info@mad-us.com

Do you plan to tune at all? If not I'd probably skip the downpipe because the gains just aren't there for the money unless you go with catless or a very high flowing catted but then you run into Cel issues.

I suggest these two mods.

MAD Intake - https://mad-us.com/mad-bmw-m340-m440...w-heat-shield/

Catback Exhaust - https://mad-us.com/mad-bmw-m340-m440...exhaust-system

Looking to do an aftermarket intake, do you guys have any links to videos where I can hear the MAD intake?

Thanks!

[mike@x-ph.com]

Originally Posted by Whysitcold

Looking to do an aftermarket intake, do you guys have any links to videos where I can hear the MAD intake?

Thanks!

We don't have a shop M340, but we own a shop S55 M4, S58 M4 and N55 335.

We tested the MAD intakes on all three cars; you can certainly hear them, MAD filters are the loudest on the market.

[cyam]

Originally Posted by Angel.M340i

Hello guys!!

Looking for get my first mod for my 2024 BMW M340i. I’m not quite sure what to get. I had these parts in mind and I would like to know more on them.

- MST INTAKE
- Downpipe
- CTS TURBO INTAKE

Willing to take any suggestions as well!

Downpipe is the only one worth spending money on in your list. The others will make no noticeable difference, except maybe sound but minimal (and of course less $$ in your wallet).

The downpipe won't give much more "peak" power, but it will allow the turbo to spool faster so you get even less lag and faster response.

I noticed a nice improvement with mine DP, but I had a 200cel which is higher flowing than the those that don't throw a cel (400cel GESI cat) - I didn't care about a cel and have a tune. A tune is difficult for you.

Having said that. For the cost of AA which is very expensive. I would spend the money instead on getting the DME unlocked (yes its a process) and then get a much much cheaper catless or 200cel cat DP. You probably won't spend much more on the unlock and DP than the cost of the AA and it completely opens up the options and allows you to get a proper tune. Then get MHD stage 2 - you won't look back.

Forget money wasting money on things like intake and intake pipes. They are just a waste. Focus your funds on biggest bang for buck. So that's what I'd do if I was you.