[CruzM3]

Originally Posted by cptcrunch

You can buy the MPPSK from getbmwparts on sale for ~$2500 plus tips ($200 for stainless). And your local BMW dealer can install it for 1-3 hours in labor. I think mine was around $3050 with tax, labor etc. Dealer matched the getbmwparts price (thankfully) and charged a reasonable 2.5 hours of labor to install and program the car.

And yeah, the butt dyno (and also my dyno above) says the MPPSK is worth it. Not as much power as a JB4 and more expensive, BUT warranty, warranty, warranty!

Not just warranty but it's the only true flash tune available and a flash tune is always better than any piggyback. Throughout the entire power and it's smooth and pulls all the way through.

[cptcrunch]

Originally Posted by Cruz28/40

Not just warranty but it's the only true flash tune available and a flash tune is always better than any piggyback. Power throughout the entire power and is smooth and pulls all the way through.

Spot on. I will take a flash tune over a piggyback tune any day of the week.

[Kossos]

Originally Posted by Cruz28/40

Not just warranty but it's the only true flash tune available and a flash tune is always better than any piggyback. Throughout the entire power and it's smooth and pulls all the way through.

My buddy went down the same road after he ordered his 340. He had to wait forever since it came from South Africa and was going back and forth over the Dinan vs MPPSK. I pushed him to go MPPSK because it's OEM, a flash tune, and that a factory stage 1 tune plus an exhaust for about $3k was a really good deal.

Needless to say he's extremely happy having gone with the MPPSK and I can tell you his car sounds absolutely amazing. I wish my car sounded 1/2 as good as his haha

[monkiboy]

Originally Posted by Cruz28/40

Not just warranty but it's the only true flash tune available and a flash tune is always better than any piggyback. Throughout the entire power and it's smooth and pulls all the way through.

do you find the MPPSK tune smooth off the bat? i received my 340 w/MPPSK last week and find the shifts and powerband sloppy instead of crisp and smooth. not sure if it's just the car figuring itself out the first few hundred miles or just what i should expect.

[smak_91]

Originally Posted by mannymazz

Everyone is going to tell you something different. In the end I think it comes down to your budget and how you feel about risking your warranty (although most will agree once you take off a tune you should be safe). I personally have mppsk and think it was more then worth it, I know power wise it's below a jb4 but I added jb+ so now I should either be on par or have slightly more power. If you want to save the money and get the most bang for your buck though jb4 is the way to go.

You can add the JB+ with the MPPSK? I thought that they didn't piggyback off of one another?

[mannymazz]

Originally Posted by smak_91

You can add the JB+ with the MPPSK? I thought that they didn't piggyback off of one another?

Jb+ is additive so it just adds boost to the MPPSK. From what I understand 2 piggy backs won't work together such as trying to use AA and jb

[CruzM3]

Originally Posted by monkiboy

do you find the MPPSK tune smooth off the bat? i received my 340 w/MPPSK last week and find the shifts and powerband sloppy instead of crisp and smooth. not sure if it's just the car figuring itself out the first few hundred miles or just what i should expect.

Give it some time/mileage and reevaluate. It was completely smooth for me but I baby it until break-in was over. I also had it installed in mines since day 1.

[Beek]

I had MPPSK added 8 months after I took delivery. Mine has been smooth as silk since day one on MPPSK. In fact I had the "cold start first put in gear stumble" that there is a thread about somewhere before MPPSK but it went away after MPPSK was installed. I have felt the shifts are not quite as sharp since MPPSK (obviously I have a ZF), I've assumed it was part of the software update and probably done to protect the tranny.

[fcp40i]

I have MPPSK in my 340i.

Can i have JB4 to?

[monkiboy]

Originally Posted by fcp40i

I have MPPSK in my 340i.

Can i have JB4 to?

yes, probably the one aftermarket tuning solution you would want to use for properly setting up values and datalogging given being so close to fuel cap

[NormanConquest]

I personally went mppsk, m limited, and going to get the brakes soon since warranty end up being more important to me since I already had the extended 100,000. Once that runs out I'll be more liberal with mods.

[Rob340i]

So MPPSK and jb+ would not work? Would this setup put you over fuel cap i would not think so. Would this set up work together could the tune from the mppsk learn to work with the jb+? Thanks for any input.

[wassy4]

Originally Posted by Rob340i

So MPPSK and jb+ would not work? Would this setup put you over fuel cap i would not think so. Would this set up work together could the tune from the mppsk learn to work with the jb+? Thanks for any input.

It can be done since the jb+ is just a boost controller.It will bring you to right around the same power as just JB4 + downpipe, so there's a chance of throttle closures occuring.

[bradsm87]

Originally Posted by Rob340i

So MPPSK and jb+ would not work? Would this setup put you over fuel cap i would not think so. Would this set up work together could the tune from the mppsk learn to work with the jb+? Thanks for any input.

Absolutely the MPPSK + JB+ on low would be a great combo. Better without a doubt than a JB4 without MPPSK IMO.

[High Flier]

Originally Posted by fcp40i

I have MPPSK in my 340i.

Can i have JB4 to?

I have the same question. I want more torque at low RPM to make it feel more like a V8, but not necessarily higher peak numbers for torque and HP. Can JB4 do this for my MPPSK 6MT?

[MPowerOrBust7]

Anyone know if its worth getting the stage 1 tune on my 2018 MPPSK 440xi gc? Just seeing if its worth the 1500$ before I go ahead and do it.

[bradsm87]

Originally Posted by BMWEnthuis7

Anyone know if its worth getting the stage 1 tune on my 2018 MPPSK 440xi gc? Just seeing if its worth the 1500$ before I go ahead and do it.

What stage 1 tune?

If you want a bit more out of it and already have MPPSK and you run 93 fuel, just get a $199 JB+ and set it on low.

[riskmaker76]

If you have MPPSK you are already adding 2 - 3 PSI above stock... putting a piggy back depending wht you get can be from 2PSI (Dinan most likely) to JB4 (unlimited depending on your settings). Its compounding till you hit the limit... and its not the fuel limit - most have no clue what that means.. You will not hit the fuel limit running 3 or 4 or 5 PSI above stock. What most are feeling is just a very poor tune and timing dropping or throttle closures.

In the end the limiting factors will be your car, fuel quality and ambient air temp. It will not only affect drivability but also performance.

Just adding boost (like a JB+) works well under most circumstances however the car adapts based on those factors I stated above and too aggressive setting will yield lower performance and/or poor drivability.. There are many who say shifts are not as smooth - why I have no idea.. I suspect the JB4 has the ability to adjust boost during a shift... its smooth as butter for me on my JB4

I will always suggest a JB4 over any other product because of its ability to adjust based on the environment and the data that is provided in the logs.

Adding 3psi is pretty significant feeling to stock MPPSK... but I must warn you, I can not run 3PSI in the summer.. If I do my timing falls just about flat. I thus run 2PSI on Map 6 in the summer with the warmer air temps. I run 93 octane in NY... Its probably just my car as others say they can run 3PSI and maintain timing no issues...

[bimmer456]

Originally Posted by riskmaker76

If you have MPPSK you are already adding 2 - 3 PSI above stock... putting a piggy back depending wht you get can be from 2PSI (Dinan most likely) to JB4 (unlimited depending on your settings). Its compounding till you hit the limit... and its not the fuel limit - most have no clue what that means.. You will not hit the fuel limit running 3 or 4 or 5 PSI above stock. What most are feeling is just a very poor tune and timing dropping or throttle closures.

In the end the limiting factors will be your car, fuel quality and ambient air temp. It will not only affect drivability but also performance.

Just adding boost (like a JB+) works well under most circumstances however the car adapts based on those factors I stated above and too aggressive setting will yield lower performance and/or poor drivability.. There are many who say shifts are not as smooth - why I have no idea.. I suspect the JB4 has the ability to adjust boost during a shift... its smooth as butter for me on my JB4

I will always suggest a JB4 over any other product because of its ability to adjust based on the environment and the data that is provided in the logs.

Adding 3psi is pretty significant feeling to stock MPPSK... but I must warn you, I can not run 3PSI in the summer.. If I do my timing falls just about flat. I thus run 2PSI on Map 6 in the summer with the warmer air temps. I run 93 octane in NY... Its probably just my car as others say they can run 3PSI and maintain timing no issues...

If MPPSK is running 3 PSI above stock on 91 that would seem to be the way to go, same fuel economy and warranty. With JB4 can you run above 3PSI on 91 octane? We don't have 93 in CA and it would cost more.

[riskmaker76]

Can you run it? Yes... Will it perform well.. that depends honestly...

Air Temp, Fuel Quality and Car itself are biggest factors..

For my car on 93 I cant run 3 PSI with MPPSK in the summer.. I can, however my timing drops too low and feel the car is holding back... 2PSI runs far better (its consistent and with no sloppy acceleration)

In the winter no issues..

I can imagine if I was running 91 it probably would make a big difference.. but I have heard others have no issues and run 3 PSI easily on 91.

I would say you will have to try it and take a log for us to see... If your timing cant hold and or is flat lined then you know... Low timing is the biggest culprit for poor drivability (outside down pipes)

MPPSK ads some challenge actually vs a stock car.. you would think its easier but they seem to be more finicky - but every car is different.

Originally Posted by bimmer456

If MPPSK is running 3 PSI above stock on 91 that would seem to be the way to go, same fuel economy and warranty. With JB4 can you run above 3PSI on 91 octane? We don't have 93 in CA and it would cost more.

[bimmer456]

Originally Posted by riskmaker76

Can you run it? Yes... Will it perform well.. that depends honestly...

Air Temp, Fuel Quality and Car itself are biggest factors..

For my car on 93 I cant run 3 PSI with MPPSK in the summer.. I can, however my timing drops too low and feel the car is holding back... 2PSI runs far better (its consistent and with no sloppy acceleration)

In the winter no issues..

I can imagine if I was running 91 it probably would make a big difference.. but I have heard others have no issues and run 3 PSI easily on 91.

I would say you will have to try it and take a log for us to see... If your timing cant hold and or is flat lined then you know... Low timing is the biggest culprit for poor drivability (outside down pipes)

MPPSK ads some challenge actually vs a stock car.. you would think its easier but they seem to be more finicky - but every car is different.

I was thinking mppsk is just put gas in and go. Surprised same make and model car with factory tune would behave differently.

[MPowerOrBust7]

I was going to do the Dinan stage 1. Said it should put me around 426 hp and 463 tq when combined with the stock MPPSK tune and exhaust etc.