[dinan5m3]

If someone is giving this flash tune for $0 at the local dealership, with added matching factory warranty (also as $0), still...

On top of base 2019 g01 x3 m40i performance, is this performance upgrade gimmicky?

In other words, would you take the offer knowing the butt dyno will (definitely) feel it?

Tempted... but ...

Reference:
CarBahn autoworks
CBG0X-0001 – Smooth Power Flash Tuner Stage 1 Software B58 X3 M40i & X4 M40i

[AlexFL]

Originally Posted by dinan5m3

If someone is giving this flash tune for $0 at the local dealership, with added matching factory warranty (also as $0), still...

On top of base 2019 g01 x3 m40i performance, is this performance upgrade gimmicky?

In other words, would you take the offer knowing the butt dyno will (definitely) feel it?

Tempted... but ...

Reference:
CarBahn autoworks
CBG0X-0001 – Smooth Power Flash Tuner Stage 1 Software B58 X3 M40i & X4 M40i

I doubt you will feel much difference to stock. Either tune it properly with BM3 or let it stock. Those weak tunes with warranty are just wasted money.

[Torinalth]

if you don't plan to do anything to the car yourself it'll be a great option. IIRC this was discussed before and CarBahn is founded by one of the original Dinan tuners. So its essentially the same thing as Dinan, just a newer company that is trying to establish the same rep.... or at least get their own niche.

do a search on the forum, I think i'm right. Anyhow, if its 0 money.... just do it. You can always flash over top of it with MHD or BM3 later if you want.

[Alias1431]

Dinan himself founded CarBahn.

Where are you getting it for $0?? How??

I would do that in a heartbeat.

[dinan5m3]

I'm still working out the details but what was floated by local CarBahn dealer is that i be their "test subject" (aka. ad person, i.e. "guinea pig").

Yes, i'm familiar with Dinan, from having their stuffs in my e39 with the dinan5 badge (lame...)

I do recall that Dinan has (always) been on "conservative" side with their tuning, i.e. providing "safe" power, at least that's their claim, along with not breaking OEM factory warranty. It's the latter that i'm tempted if $0, then jump in. That is, can't be worse, right?

With these specs at the flywheel, certainly passes the 2020 MY spec of 382 HP.

And not to far off from 2020/2021 MY spec on x3m claiming 473 HP.

That is, power wise...

And looks like x3mc is no longer offered trim with 2021 MY ???

And correct, this being the wife's ride, at least (minimum) until the factory warranty expires (but then again i do have extended warranty on this vehicle), no aftermarket performance mods.

[Alias1431]

Do it broski. I'm super jealous.

[Alias1431]

Tell them to come to eastern Washington! I volunteer as tribute.

[dinan5m3]

Originally Posted by Alias1431

Tell them to come to eastern Washington! I volunteer as tribute.

Eastern Washing, FTW!

Go Cougs!

Did my 4 years in Pullman...

[freshxdough]

Originally Posted by dinan5m3

I'm still working out the details but what was floated by local CarBahn dealer is that i be their "test subject" (aka. ad person, i.e. "guinea pig").

Yes, i'm familiar with Dinan, from having their stuffs in my e39 with the dinan5 badge (lame...)

I do recall that Dinan has (always) been on "conservative" side with their tuning, i.e. providing "safe" power, at least that's their claim, along with not breaking OEM factory warranty. It's the latter that i'm tempted if $0, then jump in. That is, can't be worse, right?

With these specs at the flywheel, certainly passes the 2020 MY spec of 382 HP.

And not to far off from 2020/2021 MY spec on x3m claiming 473 HP.

That is, power wise...

And looks like x3mc is no longer offered trim with 2021 MY ???

And correct, this being the wife's ride, at least (minimum) until the factory warranty expires (but then again i do have extended warranty on this vehicle), no aftermarket performance mods.

Competition is now a package now not a model.

A good flash tune can provide significant power and torque increase. Not just a "you might feel it on the butt dyno". If it's 100 hp and torque you WILL definitely feel it.

[msg617]

Originally Posted by freshxdough

Competition is now a package now not a model.

A good flash tune can provide significant power and torque increase. Not just a "you might feel it on the butt dyno". If it's 100 hp and torque you WILL definitely feel it.

How would you assess the risk of a tune?

[freshxdough]

Originally Posted by msg617

How would you assess the risk of a tune?

Well the easiest way to make more power with a turbocharged engine is to turn up the boost. I'm sure you can see what possible damage can occur from that.

[clivem2]

Originally Posted by freshxdough

Well the easiest way to make more power with a turbocharged engine is to turn up the boost. I'm sure you can see what possible damage can occur from that.

My feeling with boosting power is that all OEMs will only use parts sufficient for the specified power output - they really don't like wasting money so don't over-spec parts.

If you only occasionally use the extra power then probably all will be ok but when then bother? If you use it a lot don't plan to keep the car too long.

That's my view FWIW

[BMWApp]

Originally Posted by dinan5m3

I'm still working out the details but what was floated by local CarBahn dealer is that i be their "test subject" (aka. ad person, i.e. "guinea pig").

Yes, i'm familiar with Dinan, from having their stuffs in my e39 with the dinan5 badge (lame...)

I do recall that Dinan has (always) been on "conservative" side with their tuning, i.e. providing "safe" power, at least that's their claim, along with not breaking OEM factory warranty. It's the latter that i'm tempted if $0, then jump in. That is, can't be worse, right?

With these specs at the flywheel, certainly passes the 2020 MY spec of 382 HP.

And not to far off from 2020/2021 MY spec on x3m claiming 473 HP.

That is, power wise...

And looks like x3mc is no longer offered trim with 2021 MY ???

And correct, this being the wife's ride, at least (minimum) until the factory warranty expires (but then again i do have extended warranty on this vehicle), no aftermarket performance mods.

Do it. Especially if it is free. I have a Carbahn flash tune on my 340i and love it. I want to get one on my X3 M40i and would jump at this opportunity if given to me. And like another poster said, you can always overwrite the Carbahn tune with BM3, MHD, Misson Performance, etc. later if you want. But given that opportunities like this NEVER come along, I think you should take it. And if it comes with the Carbahn warranty then you literally have nothing to lose. I am super jealous. Be sure to tell your dealer that I'll drive my X3 to wherever you are if you don't take them up on it!

[dinan5m3]

Originally Posted by BMWApp

Do it. Especially if it is free. I have a Carbahn flash tune on my 340i and love it.

So, "... and love it" means you can feel it, ya?

I would think the 340i and x3 m40i have similar performance profile from these Carbahn tune...

That's it, i'm doing it.

The wife mostly drives in Eco mode for MPG (LOL), but my understanding after talking with dealer and Carbahn is that the tune is adjusted appropriately per each drive setting, so the final stated numbers for HP/TQ are in the sport + setting. Cool...

Since i have the locked DME (from recent SW update campaign from camera update) will need to be (always) shipped to Carbahn for flash tune. PITA.

And i need to have my SA put a note in the car's service profile to warn anyone who opens my profile that i must be notified before a software update is done. Dealer is not required to do SW update on DME and the only time they would be 100% necessary would be if it’s part of a safety recall.

As for the warranty, right, Carbahn’s warranty mirrors the remainder of the new car factory warranty, so for instance if something happens and it is determined by BMW that the sole cause of the issue is directly related to the tune, then Carbahn’s warranty would take over to rectify the issue. Nice...

[dinan5m3]

Originally Posted by BMWApp

Do it. Especially if it is free. I have a Carbahn flash tune on my 340i and love it.

Found it from searching online,

https://f30.bimmerpost.com/forums/sh...73&postcount=5

[BMWApp]

Originally Posted by dinan5m3

That's it, i'm doing it.

The wife mostly drives in Eco mode for MPG (LOL), but my understanding after talking with dealer and Carbahn is that the tune is adjusted appropriately per each drive setting, so the final stated numbers for HP/TQ are in the sport + setting. Cool...

Since i have the locked DME (from recent SW update campaign from camera update) will need to be (always) shipped to Carbahn for flash tune. PITA.

And i need to have my SA put a note in the car's service profile to warn anyone who opens my profile that i must be notified before a software update is done. Dealer is not required to do SW update on DME and the only time they would be 100% necessary would be if it’s part of a safety recall.

As for the warranty, right, Carbahn’s warranty mirrors the remainder of the new car factory warranty, so for instance if something happens and it is determined by BMW that the sole cause of the issue is directly related to the tune, then Carbahn’s warranty would take over to rectify the issue. Nice...

Nice. You are getting the tuning deal of the century. You can't beat free although shipping the DME will be a PITA like you said. But worth it to save $1,800 imo. Just out of curiosity, which dealership is this? Tell them you know someone else that will take them up on this offer and let them use their car and feedback on the tune for advertising, etc. I'll even do it for a discount and not free. Congrats!

[AlexFL]

Originally Posted by clivem2

My feeling with boosting power is that all OEMs will only use parts sufficient for the specified power output - they really don't like wasting money so don't over-spec parts.

If you only occasionally use the extra power then probably all will be ok but when then bother? If you use it a lot don't plan to keep the car too long.

That's my view FWIW

complete nonsense. jesus christ...

[dinan5m3]

Originally Posted by BMWApp

Nice. You are getting the tuning deal of the century. You can't beat free although shipping the DME will be a PITA like you said. But worth it to save $1,800 imo. Just out of curiosity, which dealership is this? Tell them you know someone else that will take them up on this offer and let them use their car and feedback on the tune for advertising, etc. I'll even do it for a discount and not free. Congrats!

Thanks.

I'm working with BMW of Raleigh, FYI.

Yes, i will have to pay $500 IF i need to have the DME re-flashed, to cover for the shop labor and shipping.

[clivem2]

Originally Posted by AlexFL

complete nonsense. jesus christ...

I've worked with several OEMs in their design centres including BMW, MB and Ford. I've sat in on design reviews where saving a very few cents has been a major topic. They engineer cost out of cars..it's how they make their money. If they decide they can cut costs on say a seal they will.

Some tuning is more about driveability, that's likely safer. Boosting power is more of a lottery, you can't know what design decisions the OEMs take. Mostly you'll be fine, many keep cars for only 3 years so it's ok during their ownership. Use the extra power a lot over several years then it's a lottery. Few cars are over-engineered nowadays.

BTW these "improvements" / cost take-outs occur all the way thru the model lifecycle.

[dinan5m3]

Originally Posted by clivem2

Few cars are over-engineered nowadays.

The good old days of NA engines, S62 and S54, over-engineered good old days... Both of these cars are (safely) boosted for me, lots of head room, not to mention option to lower compression's.

[Jims M3]

I am leaning towards just putting the BM3 tune on my car.