[chenry]

Originally Posted by RTPenland

this shouldn't take more than 30 mins to install at any reputable muffler shop. The hangers are exactly the same and the valve is plug and play. The two forward pipes are likely clamped or could be welded - either way wouldn't take more than 10 mins for that. The rear section falls into place once the new muffler is on it's hangers and you really don't have to worry about rear tip alignment because there are none :-)

All in all 30 mins +/- 10 mins

**EDIT**
Just went back and looked at the picture - it's clamped on in the front so no reason this install would take more than 30 mins

+1

[CajunBMW]

Originally Posted by NoTanks52

Thanks RTPenland!

With that said, is there any warranty concern if I go to muffler shop for install instead of using BMw?

The mppsk comes with bmws tune. From this forum I have learned that many people get different exhausts and their own tunes. But in purchasing the mppsk you get the tune which as far as I know, BMW needs to perform in house. I signed forms when I picked up the car that had the tune serial number. I am guessing this was registered in my record for my car. Presumably so that if other software updates are done, they can make sure my mppsk tune is still there. For me I wanted everything BMW approved so that I had my warranty in place. My car is a DD and one that I use to take my kids all over the south to soccer tournaments. Anyway this is just my understanding.

[chenry]

Originally Posted by CajunBMW

The mppsk comes with bmws tune. From this forum I have learned that many people get different exhausts and their own tunes. But in purchasing the mppsk you get the tune which as far as I know, BMW needs to perform in house. I signed forms when I picked up the car that had the tune serial number. I am guessing this was registered in my record for my car. Presumably so that if other software updates are done, they can make sure my mppsk tune is still there. For me I wanted everything BMW approved so that I had my warranty in place. My car is a DD and one that I use to take my kids all over the south to soccer tournaments. Anyway this is just my understanding.

There is not an MPPSK (M Performance Power and Sound Kit) presently available for the M340 - however that was and is an option for the F30 340. The topic at hand here is regarding the MPE (M Performance Exhaust) which is midpipes (which don't matter because the M340 already has no resonators) and a valved replacement muffler only - a factory flash is not part of the MPE.

ps- there is also an MPE for the F30 340 along with the MPPSK that you mentioned

Hope this helps.

[CajunBMW]

Originally Posted by chenry

There is not an MPPSK (M Performance Power and Sound Kit) presently available for the M340 - however that was and is an option for the F30 340. The topic at hand here is regarding the MPE (M Performance Exhaust) which is midpipes (which don't matter because the M340 already has no resonators) and a valved replacement muffler only - a factory flash is not part of the MPE.

ps- there is also an MPE for the F30 340 along with the MPPSK that you mentioned

Hope this helps.

Thanks. I was on several threads and I guess got carried away. I guess I was thinking this was the mppsk thread (or maybe just a little brain fart or both). I have a F30 thus why I was interested and eventually got the MPPSK. Im glad you responded as you answered the question I had that I had not yet asked about the differences in exhaust of the F30 340 vs the m340. Cheers.

[chenry]

Originally Posted by CajunBMW

Thanks. I was on several threads and I guess got carried away. I guess I was thinking this was the mppsk thread (or maybe just a little brain fart or both). I have a F30 thus why I was interested and eventually got the MPPSK. Im glad you responded as you answered the question I had that I had not yet asked about the differences in exhaust of the F30 340 vs the m340. Cheers.

No problem God knows I've done the same :-)

Here's a visual for you and I'm sure others are interested as well. First is the 340 exhaust and then the M340 exhaust.

[NoTanks52]

Originally Posted by chenry

No problem God knows I've done the same :-)

Here's a visual for you and I'm sure others are interested as well. First is the 340 exhaust and then the M340 exhaust.

Thanks Chenry, Is there a legend handy that shows what each # represents for us who are less familiar?

[chenry]

Originally Posted by NoTanks52

Thanks Chenry, Is there a legend handy that shows what each # represents for us who are less familiar?

sure these diagrams are from realoem.com...go there if you want to drill deeper and click through things :-)

[chenry]

And this IMHO is why I agree the MPE shouldn't take more than 30 mins to install

[Gdiddy23]

Maybe this is a stupid question, but is this exhaust system considered cat back or axle back? My MPE on my 335 was axle back but this one appears to have more piping

[CajunBMW]

Thanks for all the info. I certainly now understand exactly what they did to my car and what they are doing to the m340. I learned something. So is it correct that although the hardware for the F30 and G20 itself, although slightly different because of the differences in the car, is roughly the same in overall function. That is, the exhaust adds valves and provides better sound. In contrast, however, in the 340 mppsk there is an added tune that in general is included when you buy an m340. I realize there is a difference in HP, but similar torque between an 340 w/ mppsk and a m340 w/ mpe. Is that roughly correct? Thanks.

[MG20i]

Originally Posted by Gdiddy23

Maybe this is a stupid question, but is this exhaust system considered cat back or axle back? My MPE on my 335 was axle back but this one appears to have more piping

It doesn't really matter.
Technically the Catalytic Converter is in the downpipe right after the turbocharger. So this is not really "Cat-Back". There is a stock section of pipe from the converter back to the joint where the MPE attaches. "Cat-Back" would refer to every pipe after the converter....

There is a section of mid pipe included and that is in front of the rear axle. So this is not really "Axle Back" either.

[Gdiddy23]

Originally Posted by MG20i

It doesn't really matter.
Technically the Catalytic Converter is in the downpipe right after the turbocharger. So this is not really "Cat-Back". There is a stock section of pipe from the converter back to the joint where the MPE attaches. "Cat-Back" would refer to every pipe after the converter....

There is a section of mid pipe included and that is in front of the rear axle. So this is not really "Axle Back" either.

Interesting. I was more or less just curious

[chenry]

Originally Posted by CajunBMW

Thanks for all the info. I certainly now understand exactly what they did to my car and what they are doing to the m340. I learned something. So is it correct that although the hardware for the F30 and G20 itself, although slightly different because of the differences in the car, is roughly the same in overall function. That is, the exhaust adds valves and provides better sound. In contrast, however, in the 340 mppsk there is an added tune that in general is included when you buy an m340. I realize there is a difference in HP, but similar torque between an 340 w/ mppsk and a m340 w/ mpe. Is that roughly correct? Thanks.

I know we are getting off topic here (apologies OP).

In addition to the dual exhaust (well dual for some of the way) without resonators that has already been covered in this thread. There are some fairly meaningful mechanical updates with the B58TU engine (found in the M340) compared to the first gen (call it what you will) B58 in the 340. Here they are illustrated.

Hope this helps :-)

[CajunBMW]

Thanks for the info. I knew there were differences, but not the "where and why". Cheers.

[skw]

Has anyone here who had the F30 MPPSK now have the m340 M-Performance exhaust? How do the sound levels compare? I've listened to Jason's videos and still not sure. I turned in my 340i w/ MPPSK yesterday but not picking up my M340i until April so I have time.

[NoTanks52]

Originally Posted by WXdrivefun

Can anyone else verify if the sound is different from the regular M340i exhaust vs M-Performance exhaust in sport/Sport+ mode, from within the cabin as well?

Or is it just for outsiders/bystanders as you drive around town...

MPE definitely improves sound over stock in every drive mode. It's most prominent in sport individual and sport + where the pops and burbles really come to life. But regardless of the pops, just accelerating in general sounds deeper/louder and I love hearing the mean bark upon shifting on acceleration from a stop in S+. You will hear a notable difference both in the cabin and outside with MPE in S+ and Sport Individual. Cold starts are also super loud.

Also one thing no one appears to have mentioned yet but could just be me is that I felt a slight increase in sensitivity/throttle response at very low rpm range. Not sure if there's any data to support this but just throwing that out there in case others have noticed this as well/

[aamir_m340i]

Originally Posted by NoTanks52

MPE definitely improves sound over stock in every drive mode. It's most prominent in sport individual and sport + where the pops and burbles really come to life. But regardless of the pops, just accelerating in general sounds deeper/louder and I love hearing the mean bark upon shifting on acceleration from a stop in S+. You will hear a notable difference both in the cabin and outside with MPE in S+ and Sport Individual. Cold starts are also super loud.

Also one thing no one appears to have mentioned yet but could just be me is that I felt a slight increase in sensitivity/throttle response at very low rpm range. Not sure if there's any data to support this but just throwing that out there in case others have noticed this as well/

That sounds good - have you got any videos you could upload for us to highlight some of those differences? Thanks

[jstnstr]

Originally Posted by Jason340Msport

Sorry been busy with year end sales. I'll post some as soon as I can.

What problem are you having? It's a port installed accessory so its easy to add to a vehicle

What are the chances you feel like posting more videos/sound clips?

[NoTanks52]

Cell phone audio does not accurately depict the sound that comes from this exhaust. If anyone in LA area with quality audio/video equipment that wants to help record MPE sound to share with others here, Hit me up.

[Pawlowski95]

Does any one have additional videos to share? My Dravit grey m340 just left the factory and trying to decide if I should add the m performance exhaust as a port add on?

Thanks!

[mrkrad]

Yes add it. the problem is without a before and after, everyone's video is relative.. It's hard to say but if you want a pleasant sounding exhaust that goes from normal in comfort mode to an absolute beast in sport+ this is for you. I've heard muffler deleted m340's that sound very similar to MPE!

[Errorflyn]

Hi!
Have just picked up my M340I x drive touring. The car is fantastic in every way except the sound, it sound basically nothing. Hardly any difference between eco and sport plus mode. Anyone else experience this🤷*♂️ Regards Erik