[Alpine340i]

I have a dual resonator delete and am looking at upgrading to either a MPE or just the MPE muffler. I noticed while looking around that there seems to be 2 version of the MPE? I see cars that came with MPPSK have a muffler with an embossed M performance logo. While the BMW M performance catalog shows me a polished stainless muffler with an etched M performance logo. Is there any difference between these 2 units?

[WDE82]

MPPSK is a cat back exhaust system with electronic valve for sound.

MPE is an axle back muffler with no valve for sound.

[Alpine340i]

Okay thank you I see that now. Didn't realize there was no valve. Catback system is definitely the way to go.

[AllaVodka]

Originally Posted by Alpine340i

Okay thank you I see that now. Didn't realize there was no valve. Catback system is definitely the way to go.

Also comes with a factory tune. U cant separate the tune from the exhaust. Runs about $4K usd with install

[culpability]

AHCKTUALLY you CAN buy the MPPSK exhaust (with valves and all) seperate from the tune. Here is a link: https://www.getbmwparts.com/oem-part...b3J5IFBhZ2U%3D

Now, whether or not it can actually be installed and function without the tune, IDK. I do know that a BM3 license comes with the MPPSK flash as a free OTS tune you can use, so I suppose it should be possible to buy just the muffler, install it, and then use BM3 to get your proper flash.

[mlev]

Originally Posted by WDE82

MPE is an axle back muffler with no valve for sound.

This is incorrect, the MPE axleback actually does retain the OEM valve. I had it before I upgraded to AWE.

Note that MPE is a relatively quiet and conservative exhaust option overall.

[aardate]

Originally Posted by mlev

This is incorrect, the MPE axleback actually does retain the OEM valve. I had it before I upgraded to AWE.

Note that MPE is a relatively quiet and conservative exhaust option overall.

That is partially true because it only applies to the N55 engines on the F30. The B58 340i (2016 - 2018 US models) does not have a valved MPE axleback exhaust. Only the MPPSK is valved as others have indicated.