DP & Mid-Pipe or DP only with "M" Performance Exhaust

[Agent - ///M]

Trying to decide whether or not to upgrade to Downpipes only or Downpipes and Mid-Pipe?

I ask because I have the port installed "M" Performance Exhaust and from what I understand, it is made by Akrapovic.

If so would there really be a better mid-pipe out there?

Currently have Turner Motorsports piggy back and am fully aware I would need to go to a JB4 if I want aftermarket DP's.

[mike@x-ph.com]

start with VRSF downpipes and then decide if you want more sound

[danniexi]

Originally Posted by MoneyFactor22

I ask because I have the port installed "M" Performance Exhaust and from what I understand, it is made by Akrapovic.

That is misinformation. The M-Performance Exhaust for the F8x platform is NOT designed or made by Akrapovic. I honestly don't understand how that started and why reviewers/journalists alike get that information incorrect.

[swifty]

Cuz akra made it for the M5 I believe

[Agent - ///M]

Originally Posted by danniexi

That is misinformation. The M-Performance Exhaust for the F8x platform is NOT designed or made by Akrapovic. I honestly don't understand how that started and why reviewers/journalists alike get that information incorrect.

I appreciate your response but no where in it do you state who does.

If you are that certain Akrapovic doesn't have anything to do with R&D, then who does?

[xpunisherx]

Originally Posted by MoneyFactor22

Trying to decide whether or not to upgrade to Downpipes only or Downpipes and Mid-Pipe?

I ask because I have the port installed "M" Performance Exhaust and from what I understand, it is made by Akrapovic.

If so would there really be a better mid-pipe out there?

Currently have Turner Motorsports piggy back and am fully aware I would need to go to a JB4 if I want aftermarket DP's.

I have down pipes only with the MPE and the sound is glorious!!

Start with that I'd say and then make the decision to do the midpipes

[danniexi]

Originally Posted by MoneyFactor22

If you are that certain Akrapovic doesn't have anything to do with R&D, then who does?

this thread which contains this literature from BMW.

The M-Performance Exhaust was developed and designed in house at BMW and is made in Germany. It is not manufactured in Slovenia. The exhaust is manufactured by Prototechnik GmbH. Even the Prototechnik Brochure has the MPE plastered on their Products page.

[evanevery]

I have the MPE on my M4. (It is NOT made by Akra)...

FABSPEED makes a catless x-pipe just for use with the MPE. It is sized specifically for the cut in the exhaust required to fit the MPE. So, if you already have the MPE, the FABSPEED MPE x-pipe will fit perfectly:

http://www.fabspeed.com/bmw-m3-m4-f8...bypass-x-pipe/

FABSPEED also makes catless downpipes for the M3/M4 so I also got a set of those:

http://www.fabspeed.com/bmw-m3-m4-f8...ass-downpipes/

No cats anywhere on my track car. Straight from the turbo outlets to the MPE resonator. I also have the VSC-2 remote flap controller so I can open/close the exhaust flaps on demand:

http://www.cgprecision.com/cms/index...und-controller

Did I mention it was a bit loud? Because if I did, I didn't hear me...

[danniexi]

Originally Posted by evanevery

I have the MPE on my M4. (It is NOT made by Akra)...

FABSPEED makes a catless x-pipe just for use with the MPE. It is sized specifically for the cut in the exhaust required to fit the MPE. So, if you already have the MPE, the FABSPEED MPE x-pipe will fit perfectly:

http://www.fabspeed.com/bmw-m3-m4-f8...bypass-x-pipe/

FABSPEED also makes catless downpipes for the M3/M4 so I also got a set of those:

http://www.fabspeed.com/bmw-m3-m4-f8...ass-downpipes/

No cats anywhere on my track car. Straight from the turbo outlets to the MPE resonator. I also have the VSC-2 remote flap controller so I can open/close the exhaust flaps on demand:

http://www.cgprecision.com/cms/index...und-controller

Did I mention it was a bit loud? Because if I did, I didn't hear me...

Have you had the midpipes without the downpipes? I have no interest in DPs but the midpipe does interest me. Just worried that it will be TOO raspy with the MPE. I love the sound and tone of the MPE, though sometimes I do wish it was a bit louder in volume only.

[Agent - ///M]

Originally Posted by danniexi

this thread which contains this literature from BMW.

The M-Performance Exhaust was developed and designed in house at BMW and is made in Germany. It is not manufactured in Slovenia. The exhaust is manufactured by Prototechnik GmbH. Even the Prototechnik Brochure has the MPE plastered on their Products page.

Thank you for such clarification!

[Agent - ///M]

Originally Posted by xpunisherx

I have down pipes only with the MPE and the sound is glorious!!

Start with that I'd say and then make the decision to do the midpipes

Any video clips?

[jayyp]

I had downpipes with my MPE, but took it off within a couple of months. It was way too farty and raspy. Only sounded good after the car was warmed up and with normal driving (Not WOT). Once you push on it, the rasp galore begins.

[Arcades]

Originally Posted by jayyp

I had downpipes with my MPE, but took it off within a couple of months. It was way too farty and raspy. Only sounded good after the car was warmed up and with normal driving (Not WOT). Once you push on it, the rasp galore begins.

Aren't you on AA now Jay? lol

[jayyp]

Originally Posted by Arcades

Aren't you on AA now Jay? lol

Yep, I switched from MPE to AA. Couldn't stand the queefing MPE paired with downpipe

[Arcades]

Originally Posted by jayyp

Yep, I switched from MPE to AA. Couldn't stand the queefing MPE paired with downpipe

Yeah, the most I will do is Evo pipes not touching DPs.

[evanevery]

Originally Posted by danniexi

Have you had the midpipes without the downpipes? I have no interest in DPs but the midpipe does interest me. Just worried that it will be TOO raspy with the MPE. I love the sound and tone of the MPE, though sometimes I do wish it was a bit louder in volume only.

Yes, I ran the x-pipe without the dp's for several weeks. The sound was a bunch more refined for street use. However, the dp's and x-pipe sound great at the track. If you are going to run the dp's, x-pipe, and mpe on the street, a little throttle management and flap management would be in order.

[mike@x-ph.com]

Originally Posted by jayyp

Yep, I switched from MPE to AA. Couldn't stand the queefing MPE paired with downpipe

How does AA sound with catless downpipes?

[jayyp]

Originally Posted by mike@x-ph.com

How does AA sound with catless downpipes?

Amazing! It's a much cleaner sound with deep bass. Probably one of the best sounding exhausts I've heard for the F8x platform. dmk08 can speak to that. He's an exhaust whore haha.