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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > 340i / 440i (B58) BMW M Performance Power and Sound Kit (MPPSK) Official Release
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      07-20-2018, 10:18 PM   #903
kring
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Would love a quiet start!!
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      07-21-2018, 04:31 AM   #904
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Quote:
Originally Posted by Nebelhinten View Post
That's odd because even stock the cold start was loud. MPPSK is very loud and then settles down once the waste gate closes. And it does the same thing regardless of cold or warm start. With my 335i when warm the start was much quieter than cold. But 340i is always loud. Interested to hear BMW explanation.
Super odd really. Just waiting for the site manager of the car company I bought the car from to book me an appointment to my nearest Bmw dealer so that they can troubleshoot this problem asap.
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      07-21-2018, 11:36 AM   #905
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Quote:
Originally Posted by bimmer456 View Post
I would have them look at it. I've noticed that sometimes if I switch to sport plus right away after startup the valve doesn't actually open until a couple of minutes later.
This particular issue is a "feature". the valves won't open until the car is satisfied the cats/engine are sufficiently warm. So every start up takes a bit before they will open. Even pulling up to a gas station with a hot engine, filling up and restarting 5 min later still takes a min or so for the valves to reopen
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      07-21-2018, 03:57 PM   #906
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Quote:
Originally Posted by xlover View Post
Quote:
Originally Posted by bimmer456 View Post
I would have them look at it. I've noticed that sometimes if I switch to sport plus right away after startup the valve doesn't actually open until a couple of minutes later.
This particular issue is a "feature". the valves won't open until the car is satisfied the cats/engine are sufficiently warm. So every start up takes a bit before they will open. Even pulling up to a gas station with a hot engine, filling up and restarting 5 min later still takes a min or so for the valves to reopen
So for a brief moment it's like the MPPK, a tune without the exhaust. It definitely pulls before the valves open. Or maybe it's push since its RWD
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      08-19-2018, 01:25 AM   #907
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Is this normal? The discoloration. It's came after 100km.

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      08-19-2018, 11:41 AM   #908
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Quote:
Originally Posted by turas View Post
Is this normal? The discoloration. It's came after 100km.

Interesting, I will check my car. I noticed similar discolouration in one of my steel tips 2 days ago.

it does not look good.
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      08-22-2018, 09:59 AM   #909
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Quote:
Originally Posted by KCWolfPck View Post
Yeah....I actually got the dimensions since I posted. The box is 84x44x20 (48lbs). Going to try to get a dealership to price match or drop ship to dealership.
Thanks for providing these dimensions. Just to confirm, these dimensions are in Inches, right? Sorry, I am european and not used the inches system.

I am looking at shipping a MPPSK from my home country as it costs $1900 versus $5,800 in the country I am living.

Thanks for the info tho
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      08-22-2018, 04:27 PM   #910
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Quote:
Originally Posted by turas View Post
Is this normal? The discoloration. It's came after 100km.

I dont think so.

Here is what mine looks like after about 5K miles
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      08-23-2018, 03:56 AM   #911
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Yours looks like new. How often You using sport/sport+ mode? What speed are You driving? The pipes looks like new, like there is now high temp.
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      08-23-2018, 09:00 AM   #912
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Quote:
Originally Posted by turas View Post
Yours looks like new. How often You using sport/sport+ mode? What speed are You driving? The pipes looks like new, like there is now high temp.
80% of my driving is on the highway at around 75-80mph in comfort mode. I don't like the drone in sport mode at highway speeds.
The other 20% when I'm on regular streets I'm almost always in sport though.
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      08-23-2018, 09:37 AM   #913
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Quote:
Originally Posted by oksymoroni View Post
Quote:
Originally Posted by turas View Post
Yours looks like new. How often You using sport/sport+ mode? What speed are You driving? The pipes looks like new, like there is now high temp.
80% of my driving is on the highway at around 75-80mph in comfort mode. I don't like the drone in sport mode at highway speeds.
The other 20% when I'm on regular streets I'm almost always in sport though.
I'll occasionally throw it into sport to pass someone going a little too slow
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      08-29-2018, 08:15 PM   #914
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I got mine installed today after 2 years of ownership, drove about 100 miles.

Just WOW, the videos are nothing like what is in real life. Compared to stock, the sound is 10 times better (and about the same for loudness) cannot see why someone would want to go any louder, not for a daily driver. I really cannot believe the B58 can sound so amazing.

Worth every single penny it costs
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      08-29-2018, 09:44 PM   #915
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Quote:
Originally Posted by VVlasy View Post
I got mine installed today after 2 years of ownership, drove about 100 miles.

Just WOW, the videos are nothing like what is in real life. Compared to stock, the sound is 10 times better (and about the same for loudness) cannot see why someone would want to go any louder, not for a daily driver. I really cannot believe the B58 can sound so amazing.

Worth every single penny it costs
Yes, really changes the character of the car. And you can easily tone it down by changing modes.
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      08-29-2018, 10:43 PM   #916
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Quote:
Originally Posted by turas View Post
Yours looks like new. How often You using sport/sport+ mode? What speed are You driving? The pipes looks like new, like there is now high temp.
i polish mine every couple months and looks like new 20k miles later. 95% sport mode, about half city, half highway
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      09-16-2018, 11:49 PM   #917
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Hello
New to the forum.
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      09-17-2018, 09:45 AM   #918
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Quote:
Originally Posted by Eragon74 View Post
Hello
New to the forum.
Hello and welcome.

ps the General F30 sedan/ F32 coupe/ F36 gran coupe Forum is a better spot to post an introduction but no worries. You should head over there and post some pics, give us some spec's and let us know any upgrades you're planning.
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'09 Outback for a beater and grocery getter.
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      09-18-2018, 08:34 AM   #919
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Just curious anyone get harassed by cops with the mppsk? Also, mine still looks great without polishing.
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      09-18-2018, 11:07 AM   #920
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I don't polish at all and mine looks great too.

Never hassled by the cops with mppsk. It's a bit obnoxious at times but they seem to leave me alone.
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      09-19-2018, 02:29 AM   #921
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440i GC MPPSK

Hi all, have read various bits of this thread and agree/disagree equally.

So here's my take.

I have owned Persephone (a 'pretty' loaded GC (RRP 60k for previous owner)) for 18 months with the DTUK tuning kit on it, tested on a rolling road to around 380BHP! It really is that good.

The MPPSK was the one modification I really wanted and finally succumbed a month ago. I ran it for 3 weeks prior and post without the DTUK chip.

With the MPPSK, without a doubt, the car pulls better, faster, sweeter, significantly so.

With the chip back on, it's blistering, power delivery not as smooth if I'm honest, but my goodness, it pushes one back in the chair, and the front visibly goes up! It must be pushing well over 400bhp and probably over 420.

The sound is incredible, I smile every journey, even when stuck on the M42/M5. The burbles and pops are wonderful and when I finally master the extreme acceleration bangs, I will be a happy middle aged yob!.

Like others, I wish (or my wife wishes) that it had a quieter start-up at 5.30AM .

There is occasional evidence of droning at certain speeds (eco/comfort) but only just noticeable.

For sure this is an expensive upgrade, but it's made a wonderful car even better.

I can drive it around and not be noticed, or with the flick of a button, people within a mile radius will take for cover from the thunder.
Does anyone want to buy a standard 440i exhaust :-)

Last edited by T88BOB; 09-20-2018 at 05:28 AM.
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      10-06-2018, 01:55 PM   #922
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Quote:
Originally Posted by turas View Post
Is this normal? The discoloration. It's came after 100km.

Looks like the color changed from heat or something. My MPE passenger side tip sorta went discolored so i swapped it to the driver side to let the other tip turn a little discolored assuming the passenger tail pipe gets hotter then the left.
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      10-06-2018, 01:58 PM   #923
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Quote:
Originally Posted by bimmer456 View Post
Just curious anyone get harassed by cops with the mppsk? Also, mine still looks great without polishing.
Since you're from Pasadena you might. If you head towards Glendale then for sure they will harass you if you're popping and banging every where even though its OEM they still will write you a ticket and you will need to go to BMW and have them inspect it as a oem unit and go to court and pretty much waste your time so you're better off in comfort mode in certain cities. I have the 5" catted dp + MPE and the MPE does not have a valve and i haven't gotten harassed yet....might be because of my right foot i normally go WOT on the highway and not the streets.
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      12-09-2018, 03:53 PM   #924
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Getting mine fitted next week, literally cannot wait.
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