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M2 Technical Topics > S55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > If you had the new M2 Competition, will you put a tune on it?

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      03-28-2018, 10:09 AM   #1
arwin
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If you had the new M2 Competition, will you put a tune on it?

Coming from the F30 to my F87, I was thinking that the F87 would have plenty of power and that I wouldn't need to mod it much. Maybe just cosmetic mods...but after browsing the forum and seeing what's available, I just pulled the trigger on the Hex tune and a Fabspeed DP.

This got me thinking...if I were actually getting the new M2 Comp, would I put another tune on it just because I can? My initial thoughts are no, there's no need...but I think when the tunes come out and I see that there's not much more cost to add a significant amount of power (obviously, not really needed), I think I would still pull the trigger once again to add more power just because I can, but not because it's necessary.

What's wrong with me? lol

So what about you guys? Are you guys just as messed up as me?
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      03-28-2018, 10:16 AM   #2
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Sorry not really an answer to your question, but what do you think of Hex tune ? Is it really worth ? Do you really feel a difference ?
Cheers
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      03-28-2018, 10:23 AM   #3
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Quote:
Originally Posted by Saphirschwarz View Post
Sorry not really an answer to your question, but what do you think of Hex tune ? Is it really worth ? Do you really feel a difference ?
Cheers
No idea.
I just ordered it. Looks like a 4 week delay on shipping of the Fabspeed DP as well
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      03-28-2018, 11:47 AM   #4
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Nothing crazy since I'll track it but planning on getting a M4 CS or GTS flash tune.
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      03-28-2018, 11:49 AM   #5
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The M2 itself is not a necessity, so........ which is very good and will not last many generations for the nice car lovers.
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      03-28-2018, 11:58 AM   #6
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If I had an S55 I would 100% BM3 the shit out of it. The S55 platform is WAYYYY more tunable than the N55. S55 will break the 500 barrier with DP and Tune while the N55 will struggle to break 400 with the same mods. Current M2 just isn't really as good of a tuning platform. N54/B58/S55 are much better in that aspect.
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      03-28-2018, 12:12 PM   #7
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^Exactly. The S55 is very modifiable. No way I'd keep it stock. That'd be the only reason why I would trade up.
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      03-28-2018, 12:27 PM   #8
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I'm sure the car will be properly quick out of the box. That will keep me entertained... until it doesn't and I get the itch for moarr powaaa . Then the mods start incrementally, first tune (especially with the ease of OBD flashing), then DP, brakes, wheels/tires, and supporting mods. Makes long term ownership more appealing when you can make improvements over time.
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      03-28-2018, 12:51 PM   #9
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Quote:
Originally Posted by arwin View Post
No idea.
I just ordered it. Looks like a 4 week delay on shipping of the Fabspeed DP as well
Please write a review when u get it !!
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      03-28-2018, 02:37 PM   #10
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There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
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      03-28-2018, 02:51 PM   #11
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Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
I believe 40hp difference will be only on paper. BMW usually underrates their engines and their claimed HP is usually the HP at the wheels. I keep saying "usually' because for instance this wasn't the case with the M2. A completely stock M2 dynoes around ~330whp at best depending on various factors. However, if you look at the examples of S55, a fully stock M4 ZCP can make ~440-450whp or a Non-ZCP ~420whp. What I'm getting at is the HP difference between the N55 M2 and the S55 M2 might be more than just 40hp in real life. In any case, as others mentioned, S55 has a huge tuning potential and you can reach near 550whp pretty easily.

Last edited by M-Pilot; 03-28-2018 at 03:08 PM..
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      03-28-2018, 02:59 PM   #12
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Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
Just the fact that it has the M buttons on the steering wheel is a strong draw for me. I HATE that I can't configure things how I want them and instead I just get whatever settings BMW decided on in each mode. Want sport throttle in sport+ ? Well currently I can't have that, but I suspect in the M2 Comp you can set everything up as you please and assign those saved settings to a button.

Also I suspect it's going to be quite a bit more than 40 hp, it will only be 40 hp on paper but more in reality when actually tested on a dyno. Higher redline and pulls all the way to 7500 probably as well.
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      03-28-2018, 03:17 PM   #13
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Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
Drawbacks? S55 is more rev happy, higher redline, betting cooling, more robust oil system, closed deck, better throttle response...etc.

Only argument I see constantly is sound, which is completely subjective. N55 is a run of mill BMW engine, nothing special about it. In fact I'd rate the N54 over the N55.
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      03-28-2018, 08:45 PM   #14
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Quote:
Originally Posted by M3_WC View Post
Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
Drawbacks? S55 is more rev happy, higher redline, betting cooling, more robust oil system, closed deck, better throttle response...etc.

Only argument I see constantly is sound, which is completely subjective. N55 is a run of mill BMW engine, nothing special about it. In fact I'd rate the N54 over the N55.
Really not trying to do yet another N55 vs S55 here. The trade-offs on the S55 are:
1. Weight - speculating 70 lbs heavier but you can come up with your own number
2. Turbo lag - well documented and to be expected when there are only 3 cylinders boosting each turbo
3. Sound - one can say the flat 4 sound in Subie and 781 is subjective, too. Or just call a spade a spade

To be perfectly frank I would not trade N55 for S55 for even money, but hey, it's subjective
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      03-28-2018, 08:57 PM   #15
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Quote:
Originally Posted by M3_WC View Post
Drawbacks? S55 is more rev happy, higher redline, betting cooling, more robust oil system, closed deck, better throttle response...etc.

Only argument I see constantly is sound, which is completely subjective. N55 is a run of mill BMW engine, nothing special about it. In fact I'd rate the N54 over the N55.
The N55 in the M2 has heavily upgraded internals. It closer to the S55 than a plain old N55.
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      03-28-2018, 09:35 PM   #16
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I'm not going to tune mine, so far it has plenty of power for me. If I had the new M2 comp I probably wouldn't tune it either.
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      03-28-2018, 09:58 PM   #17
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Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
Except those extra horses are BMW derived horses, not via piggyback or bench flash tune. Those are full warranty backed horses, which matters if you plan to keep the car for longer than a couple of years.

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      03-28-2018, 11:02 PM   #18
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Quote:
Originally Posted by ChrisK View Post
The N55 in the M2 has heavily upgraded internals. It closer to the S55 than a plain old N55.
The N55 in M2, is a N55 with some forged internals and higher boost. It is definitely not closer to the S55. They don’t even share the same block, the foundation of the engine.
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      03-28-2018, 11:26 PM   #19
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Quote:
Originally Posted by dmboone25 View Post
Quote:
Originally Posted by RedCarrot View Post
There's no point getting the S55 M2 if you don't tune it. No way would I put up with the extra cost and its drawbacks for measly 40hp over the N55. I am actually not getting an S55 M2 but just speaking hypothetically...
Except those extra horses are BMW derived horses, not via piggyback or bench flash tune. Those are full warranty backed horses, which matters if you plan to keep the car for longer than a couple of years.

I under your point. My thinking is I have taken the risk of tuning the N55 for a lot less gain in return. If I had an S55 that bitch is getting tuned!

That's me being logical on something that is irrational lol
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      03-28-2018, 11:51 PM   #20
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No, I would invest the money to improve driving skills. HPDE ftw.
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      03-28-2018, 11:53 PM   #21
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Hex tune and downpipe done deal ///
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      03-29-2018, 01:23 AM   #22
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Quote:
Originally Posted by andrewc89 View Post
If I had an S55 I would 100% BM3 the shit out of it. The S55 platform is WAYYYY more tunable than the N55. S55 will break the 500 barrier with DP and Tune while the N55 will struggle to break 400 with the same mods. Current M2 just isn't really as good of a tuning platform. N54/B58/S55 are much better in that aspect.
There's a bit of misunderstanding of S55 power here.

M4 base and M2 whp difference is 50-60whp, not more as many think. Detuned S55 with M2 Comp probably has 10whp less, that's around 45whp more over N55 M2, stock for stock.

As for tuning potential, on stock turbo and pump gas, breaking 500 with S55 is just as hard as breaking 400 with M2 N55. S55 also has a ugly top end when you push that hard.

Lastly, M2 N55 has just a bit more power potential than N54, given stock turbo.

Come on guys, fit a PS2 to match S55. Above 450whp I doubt you'd even care 10 or 20 more or less.
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