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      03-23-2020, 10:45 AM   #1
Aidym10
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On the market for a 440i... mppsk or aftermarket?

Currently looking for a 440i msport coupe in the UK

I would love one with the mppsk on it already.
Is this the best way to go or get an aftermarket exhaust and map put on the car?
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      03-23-2020, 12:33 PM   #2
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Quote:
Originally Posted by Aidym10 View Post
Currently looking for a 440i msport coupe in the UK

I would love one with the mppsk on it already.
Is this the best way to go or get an aftermarket exhaust and map put on the car?
You're going to hear a lot of opinions on this, because it's subjective. I'll give you my take on it.
I bought my 2016 340i in 2016 and the tuning options at that time were pretty limited. I bought a service loaner with 3K miles on it and paid for the dealership to install the MPPSK kit as part of the sale. And it was expensive. I drove the car with that and a JB4 in place for several years and enjoyed it immensely.

Now that flash options and many exhaust options are available, you can go a lot faster for a lot cheaper with a flash tune + aftermarket exhaust.

In my opinion, many of the aftermarket exhausts don't sound as good as the MPPSK exhaust and don't offer the same flexibility with the valved flap, which makes a huge different in how loud the car is, especially if you plan to install a catless downpipe.

There is also the warranty implications. MPPSK + JB4 is arguably one of the safest methods to go fast and sound good without putting your warranty at risk (although all tunes have some level of risk, blah blah blah, let's not start that argument again)

I think ultimately it comes down to your pocket book and your comfort level with warranty risk.

Absolute cheapest route to go very fast + be loud= aftermarket exhaust + flash tune (you pick your favorite brands of each)

Lowest risk to warranty= MPPSK + JB4

Highest cost (but in my opinion has the best sound and best performance)= MPPSK + catless + flash tune, but obviously from my sig, I'm biased
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      03-23-2020, 12:45 PM   #3
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Quote:
Originally Posted by SÁpreme View Post
You're going to hear a lot of opinions on this, because it's subjective. I'll give you my take on it.
I bought my 2016 340i in 2016 and the tuning options at that time were pretty limited. I bought a service loaner with 3K miles on it and paid for the dealership to install the MPPSK kit as part of the sale. And it was expensive. I drove the car with that and a JB4 in place for several years and enjoyed it immensely.

Now that flash options and many exhaust options are available, you can go a lot faster for a lot cheaper with a flash tune + aftermarket exhaust.

In my opinion, many of the aftermarket exhausts don't sound as good as the MPPSK exhaust and don't offer the same flexibility with the valved flap, which makes a huge different in how loud the car is, especially if you plan to install a catless downpipe.

There is also the warranty implications. MPPSK + JB4 is arguably one of the safest methods to go fast and sound good without putting your warranty at risk (although all tunes have some level of risk, blah blah blah, let's not start that argument again)

I think ultimately it comes down to your pocket book and your comfort level with warranty risk.

Absolute cheapest route to go very fast + be loud= aftermarket exhaust + flash tune (you pick your favorite brands of each)

Lowest risk to warranty= MPPSK + JB4

Highest cost (but in my opinion has the best sound and best performance)= MPPSK + catless + flash tune, but obviously from my sig, I'm biased
I appreciate it could be cheaper going the aftermarket option, am I not right in saying that the BHP is increased to 355/360 with the mppsk option? How does that cope with the jb4 on top of an already tuned car? And what is the power output with both?

I wouldn't mind going mad with all the mods like decatting etc but the checks are strict in Northern Ireland and probably wouldn't get away with it for long
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      03-23-2020, 01:57 PM   #4
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Mppsk is very nice exhaust ,go for it, it sounds better then my 335 dinan exhaust.Im with catless dp and bm3 st2 OTS tune


Last edited by yokata; 03-23-2020 at 07:16 PM..
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      03-23-2020, 02:21 PM   #5
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Quote:
Originally Posted by Aidym10 View Post
I appreciate it could be cheaper going the aftermarket option, am I not right in saying that the BHP is increased to 355/360 with the mppsk option? How does that cope with the jb4 on top of an already tuned car? And what is the power output with both?

I wouldn't mind going mad with all the mods like decatting etc but the checks are strict in Northern Ireland and probably wouldn't get away with it for long
The MPPSK bump in power is fairly mild. The JB4 stacks with the MPPSK and increases PSI target and makes a significant difference. I made 406/426 AWHP/TQ with MPPSK/catless DP/AP Intake/JB4 map 3 on 93 octane mixed with about 5 gal of 100 octane racegas.
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      03-23-2020, 02:23 PM   #6
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Quote:
Originally Posted by Aidym10 View Post
Currently looking for a 440i msport coupe in the UK

I would love one with the mppsk on it already.
Is this the best way to go or get an aftermarket exhaust and map put on the car?
Aftermarket will always get you more value for your money.

Get Bootmod3 + REMUS exhaust
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      03-23-2020, 02:53 PM   #7
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Quote:
Originally Posted by SÁpreme View Post
The MPPSK bump in power is fairly mild. The JB4 stacks with the MPPSK and increases PSI target and makes a significant difference. I made 406/426 AWHP/TQ with MPPSK/catless DP/AP Intake/JB4 map 3 on 93 octane mixed with about 5 gal of 100 octane racegas.
There is a business near me arguably the best in the country, and he says if I get a car with the mppsk he can map it further up to 400/428 for stage 1 and for stage 2 420/457 seems like pretty good gains! Think I might go down this route instead of bootmod3 or jb4
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      03-24-2020, 11:43 AM   #8
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Quote:
Originally Posted by Aidym10 View Post
There is a business near me arguably the best in the country, and he says if I get a car with the mppsk he can map it further up to 400/428 for stage 1 and for stage 2 420/457 seems like pretty good gains! Think I might go down this route instead of bootmod3 or jb4
This does not make any sense, to be honest with you. If he is mapping your car, it does not matter what the stock map on this car is.
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      03-24-2020, 02:23 PM   #9
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Quote:
Originally Posted by mike@x-ph.com View Post
This does not make any sense, to be honest with you. If he is mapping your car, it does not matter what the stock map on this car is.
If that's the case then why does bootmod3 give you a bigger gain on top of the mppsk?
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      03-24-2020, 03:07 PM   #10
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Quote:
Originally Posted by Aidym10 View Post
If that's the case then why does bootmod3 give you a bigger gain on top of the mppsk?
it doesnt. the b58 comes in varying power levels for different vehicles but after a flash they all make similar power.
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      03-24-2020, 03:10 PM   #11
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OP, what's your budget for the power and exhaust upgrade?
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      03-24-2020, 03:14 PM   #12
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Quote:
Originally Posted by Aidym10 View Post
If that's the case then why does bootmod3 give you a bigger gain on top of the mppsk?
Flash tunes don't give a bigger gain "on top of MPPSK". They rewrite and replace any MPPSK tuning.

Piggyback tunes such as JB4 can stack "on top of" MPPSK by spoofing psi values and forcing the engine to increase targets.
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      03-24-2020, 03:17 PM   #13
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Quote:
Originally Posted by Aidym10 View Post
If that's the case then why does bootmod3 give you a bigger gain on top of the mppsk?
It does not.

Keep in mind cars with MPPSK have the same engine with the same internal and transmission. Their HP/TQ limit is the same as a car without the MPPSK.
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      03-25-2020, 06:06 AM   #14
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Quote:
Originally Posted by cfm56d7b View Post
OP, what's your budget for the power and exhaust upgrade?
Probably in the region of ú3k
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      03-25-2020, 06:09 AM   #15
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Quote:
Originally Posted by mike@x-ph.com View Post
It does not.

Keep in mind cars with MPPSK have the same engine with the same internal and transmission. Their HP/TQ limit is the same as a car without the MPPSK.
My apologies I should have checked what his tune was without the mppsk and with or without mppsk they both get the same final result.

Now I'm wondering should I just get the m performance exhaust and a map from this guy and save some money from not having BMW do the flash on top.
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      03-25-2020, 10:43 AM   #16
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Quote:
Originally Posted by Aidym10 View Post
My apologies I should have checked what his tune was without the mppsk and with or without mppsk they both get the same final result.

Now I'm wondering should I just get the m performance exhaust and a map from this guy and save some money from not having BMW do the flash on top.
I would skip on both BMW mods. Get the exhaust and tune aftermarket, you will get more value for your money
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      03-25-2020, 10:58 AM   #17
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Just me but the MPPSK sounds like a great all rounder.. You get a slight increase in power - not too much- and a nice sounding exhaust that burbles and pops quite a bit more. On top of that you get the reassurance of the quality...
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      03-25-2020, 11:06 AM   #18
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Quote:
Originally Posted by 740I_yeye View Post
Just me but the MPPSK sounds like a great all rounder.. You get a slight increase in power - not too much- and a nice sounding exhaust that burbles and pops quite a bit more. On top of that you get the reassurance of the quality...
That seems like a fair point! My local bmw dealer said they can supply and fit the mppsk with carbon tips for ú1,800 which seems like a bargain!
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      03-26-2020, 03:01 PM   #19
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The MPPSK exhaust is a good one. And comes with the best warranty on the market, so for £1800 is not a bad choice.

You can always BM3 later if you find you want more power. I'd skip the tuner option.
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      03-26-2020, 03:44 PM   #20
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Quote:
Originally Posted by NISFAN View Post
The MPPSK exhaust is a good one. And comes with the best warranty on the market, so for £1800 is not a bad choice.

You can always BM3 later if you find you want more power. I'd skip the tuner option.
Does the tuner part of it not mean the burbles and pops happen? Or is that the MP exhaust that they come with?
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      03-26-2020, 03:59 PM   #21
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Quote:
Originally Posted by Aidym10 View Post
Quote:
Originally Posted by NISFAN View Post
The MPPSK exhaust is a good one. And comes with the best warranty on the market, so for £1800 is not a bad choice.

You can always BM3 later if you find you want more power. I'd skip the tuner option.
Does the tuner part of it not mean the burbles and pops happen? Or is that the MP exhaust that they come with?
Sorry should have explained better. You get the MPPSK tune with the MPPSK upgrade. It is a mild tune though.

When you want more power, you can go for something like BM3 and flash it yourself.

No need for an aftermarket tuner, the majority are a waste of money.
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      03-27-2020, 04:37 AM   #22
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Quote:
Originally Posted by NISFAN View Post
Sorry should have explained better. You get the MPPSK tune with the MPPSK upgrade. It is a mild tune though.

When you want more power, you can go for something like BM3 and flash it yourself.

No need for an aftermarket tuner, the majority are a waste of money.
I see what you mean now, thanks for the info! Think I'll go mppsk then. I read that insurer's around here don't mind that because it's an OEM part from bmw so shouldn't get stung to bad!
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