[cardsy]

Hi all, currently deciding between a 340i (RWD) and M235i as a DD (commute ~10 miles one way). I plan on getting BM3 Stage 2 on either car.

(1) Will I need to replace the turbos on the M235i if I'm looking for 400bhp? I know upgraded FMIC/DP is required, but wasn't sure about turbos if I'm 'only' looking for 400bhp.

(2) The main differences are the adaptive suspension on the M235i versus the 704 fixed MSport suspension on the 340i, plus the 340i has some additional tech goodies (BSM, side/top view cameras).

I know it's an odd matchup as it's comparing the sedan against a coupe as well as B58 versus N55 tuning. Am curious which you think would be more fun as a daily driver--any thoughts would be appreciated, thanks!

[BostonM235xi]

Originally Posted by cardsy

Hi all, currently deciding between a 340i (RWD) and M235i as a DD (commute ~10 miles one way). I plan on getting BM3 Stage 2 on either car.

(1) Will I need to replace the turbos on the M235i if I'm looking for 400bhp? I know upgraded FMIC/DP is required, but wasn't sure about turbos if I'm 'only' looking for 400bhp.

(2) The main differences are the adaptive suspension on the M235i versus the 704 fixed MSport suspension on the 340i, plus the 340i has some additional tech goodies (BSM, side/top view cameras).

I know it's an odd matchup as it's comparing the sedan against a coupe as well as B58 versus N55 tuning. Am curious which you think would be more fun as a daily driver--any thoughts would be appreciated, thanks!

Extremely different cars - I would say if you need 4 doors or a bigger car get the 3, other wise M235.
Answer your other question - You do not have to replace the turbo to get to 400 HP - Stage 2 tune.

[cardsy]

Originally Posted by BostonM235xi

Extremely different cars - I would say if you need 4 doors or a bigger car get the 3, other wise M235.
Answer your other question - You do not have to replace the turbo to get to 400 HP - Stage 2 tune.

Don't need the four doors, so I started eyeing the 2 series I don't mind the (lack of) bsm, but am a little hung up on the n55 vs b58 decision.

[Pray for Mojo]

Either engine will meet your goal of 400bhp with just bolt ons. N55 sounds better, and is a bit more proven having been around for 10 years. B58 has a beefier engine block will make more power with stock turbos, overall longevity still unknown.

[cardsy]

Originally Posted by Pray for Mojo

Either engine will meet your goal of 400bhp with just bolt ons. N55 sounds better, and is a bit more proven having been around for 10 years. B58 has a beefier engine block will make more power with stock turbos, overall longevity still unknown.

Oh wow wasn't aware FBO would get me there-- that's certainly nice to hear, thanks do you happen to have any thoughts on the chassis/everything-else-but-engine as well?

[gosi]

Why don’t you find a M240i? It has the same engine as the 3 series

[CEDS 2]

Originally Posted by cardsy

Oh wow wasn't aware FBO would get me there-- that's certainly nice to hear, thanks do you happen to have any thoughts on the chassis/everything-else-but-engine as well?

https://www.2addicts.com/forums/show....php?t=1664674

I did a stock baseline vs FBO dyno run to show differences

[cardsy]

Originally Posted by gosi

Why don’t you find a M240i? It has the same engine as the 3 series

They're about 5-10k more, and at that range I'd start looking at other models

Originally Posted by CEDS 2

https://www.2addicts.com/forums/show....php?t=1664674

I did a stock baseline vs FBO dyno run to show differences

Nice! Unfortunately in CA we only have 91 oct, but that definitely gives me a better idea of what to expect, thank you.

[gosi]

Honestly I’d probably take the 340i vs 235i if the price was the same. 340i vs 240i is a better contest

[Dylan86]

Originally Posted by gosi

Honestly I’d probably take the 340i vs 235i if the price was the same. 340i vs 240i is a better contest

There's no contest, the F22 is the better car regardless of engine imo. That is, unless OP "NEEDS" a 4 door.

[BEM-S4]

I am on my second M235 and have multiple F3X cars. Pretty simple decision IMO. Is your commute more highways or back roads? I never reach for my M235 keys if I am going to do 50+ miles on the highway, long distance cruising, etc. Around town, it's the weapon of choice.

That said I assume both would suit your needs from a practicality perspective or you wouldn't be considering them to begin with.

[cardsy]

Originally Posted by BEM-S4

I am on my second M235 and have multiple F3X cars. Pretty simple decision IMO. Is your commute more highways or back roads? I never reach for my M235 keys if I am going to do 50+ miles on the highway, long distance cruising, etc. Around town, it's the weapon of choice.

That said I assume both would suit your needs from a practicality perspective or you wouldn't be considering them to begin with.

More highways, and typically only ~10 miles each way-- & indeed no need for four doors, so you're correct there!

[BEM-S4]

Originally Posted by cardsy

More highways, and typically only ~10 miles each way-- & indeed no need for four doors, so you're correct there!

You'll be happy with the M235 then. To hit some of your other questions don't mess with the turbos. I am stage 2 Dinan and did FMIC, charge pipe and intake. Don't worry about the down pipe either, charge pipe is much higher priority upgrade. You should be close enough to 400hp that way without too much strain on anything and have a nicely equipped DD.

Honestly if you're looking to save a few bucks do the AFE drop in filter upgrade, although you can source a Dinan CAI pretty cheap in the classifieds these days. Any other intake is crap unless you get to Eventuri which is stupid $.

[CEDS 2]

Originally Posted by BEM-S4

You'll be happy with the M235 then. To hit some of your other questions don't mess with the turbos. I am stage 2 Dinan and did FMIC, charge pipe and intake. Don't worry about the down pipe either, charge pipe is much higher priority upgrade. You should be close enough to 400hp that way without too much strain on anything and have a nicely equipped DD.

Honestly if you're looking to save a few bucks do the AFE drop in filter upgrade, although you can source a Dinan CAI pretty cheap in the classifieds these days. Any other intake is crap unless you get to Eventuri which is stupid $.

Where are you finding the Dinan CAI? I've been looking forever and none of them are cheap.