AC Fabrication BMW M3/ M4 Midpipe in the works

[mike@x-ph.com]

Here is a clip of the new AC fabrication midpipe BMW M3/M4 S55
Targeting a February release
No pictures available yet - Still working on the final design

[PayamFSU]

sounds clean! Stock rear?

[f80er]

Look like trumpets for exhaust tips.

[jayyp]

My guess is they went with the single midpipe like AA, no more queefing.

[mike@x-ph.com]

Originally Posted by PayamFSU

sounds clean! Stock rear?

Correct

[mike@x-ph.com]

Originally Posted by PayamFSU

sounds clean! Stock rear?

Originally Posted by jayyp

My guess is they went with the single midpipe like AA, no more queefing.

It would be surprising if they go against a single midpipe since their exhaust has the single midpipe already

[EALm4]

should be interesting

[Agent11br]

Any news on these?

[mike@x-ph.com]

Originally Posted by Agent11br

Any news on these?

Few more weeks

[8_is_enough]

Can this be shipped to Cali?

[Agent11br]

Originally Posted by mike@x-ph.com

Few more weeks

Cannot wait mike@x-ph.com

Cant get Remus new anymore. The AA setup is cool but a lot of crackle in the sound. Dinan's new mid doesn't delete the secondary cats. Am praying this is a solid, stainless, setup that can be easily integrated with stock DP's and muffler.

This with some BMS tips

[trynalivepro]

Originally Posted by Agent11br

Cannot wait mike@x-ph.com

Cant get Remus new anymore. The AA setup is cool but a lot of crackle in the sound. Dinan's new mid doesn't delete the secondary cats. Am praying this is a solid, stainless, setup that can be easily integrated with stock DP's and muffler.

This with some BMS tips

What do you mean by "the AA setup is cool but a lot of crackle in the sound"?

[Agent11br]

Originally Posted by trynalivepro

What do you mean by "the AA setup is cool but a lot of crackle in the sound"?

Just my opinion from listening to a lot of videos. Check out these posts/threads:

http://f80.bimmerpost.com/forums/sho...0&postcount=15
(go to around 1 min in this to hear what I'm talking about, again at around 1:45)

http://f80.bimmerpost.com/forums/sho....php?t=1214125

http://f80.bimmerpost.com/forums/sho....php?t=1217568

http://f80.bimmerpost.com/forums/sho....php?t=1272584

[SflBimmer8484]

Originally Posted by Agent11br

Just my opinion from listening to a lot of videos. Check out these posts/threads:

http://f80.bimmerpost.com/forums/sho...0&postcount=15
(go to around 1 min in this to hear what I'm talking about, again at around 1:45)

http://f80.bimmerpost.com/forums/sho....php?t=1214125

http://f80.bimmerpost.com/forums/sho....php?t=1217568

http://f80.bimmerpost.com/forums/sho....php?t=1272584

Are you referring to the ignition cut sound through the shift? You will only get that under load and not while free reving.

[Agent11br]

Originally Posted by Andrew@ActiveAutowerke

Are you referring to the ignition cut sound through the shift? You will only get that under load and not while free reving.

Yea it's definitely under load. It seems to be more prevalent in the single pipe setups like yours versus double with a crossover like Remus/Dinan.

I loved the burbles in my two prior N54's, esp w/ DPs. The S55 seems to get more crackle, granted everything I'm seeking is only messing with the mid section. With two little ones now, I have to be a bit more domesticated in the noise department

[JDE92M3]

Originally Posted by Agent11br

Yea it's definitely under load. It seems to be more prevalent in the single pipe setups like yours versus double with a crossover like Remus/Dinan.

I loved the burbles in my two prior N54's, esp w/ DPs. The S55 seems to get more crackle, granted everything I'm seeking is only messing with the mid section. With two little ones now, I have to be a bit more domesticated in the noise department

I Will be posting about the AA Midpipe very soon! Hands down, it is one of my favorite mods on my car. Just need better weather in midwest so I can take some more after videos. The exhaust now makes all the right noises, and I get complimented on how deep exhaust sounds all the time. And I'm not sure if you love or hate the crackle sound, but I drive like an ass just to hear it lol. The only issue for me! The AA sounds dope from the exterior of the car, but my only gripe is that I don't hear the exhaust inside the car how I would like to. Again not an AA issue, more personal preference. F80 is just quiet in the interior when windows rolled up, when I roll all four windows down I hear music!

I'll try to add more rolling vids, and mic'd up cruising vids. As always videos just don't do it justice. That's why I delayed buying any exhaust mods, but now I wish I got the mod sooner.

JD

[Fugazii]

I just installed my full AA system almost to clean! I'm doing a filter delete to help make a little more sound.

[mike@x-ph.com]

Originally Posted by Fugazii

I just installed my full AA system almost to clean! I'm doing a filter delete to help make a little more sound.

Nice!
Post a video

[SflBimmer8484]

Originally Posted by JDE92M3

I Will be posting about the AA Midpipe very soon! Hands down, it is one of my favorite mods on my car. Just need better weather in midwest so I can take some more after videos. The exhaust now makes all the right noises, and I get complimented on how deep exhaust sounds all the time. And I'm not sure if you love or hate the crackle sound, but I drive like an ass just to hear it lol. The only issue for me! The AA sounds dope from the exterior of the car, but my only gripe is that I don't hear the exhaust inside the car how I would like to. Again not an AA issue, more personal preference. F80 is just quiet in the interior when windows rolled up, when I roll all four windows down I hear music!

I'll try to add more rolling vids, and mic'd up cruising vids. As always videos just don't do it justice. That's why I delayed buying any exhaust mods, but now I wish I got the mod sooner.

JD

Driving with the windows up is a mistake. Open that Valve and listen to the music I drive like such an ass now with my mid pipe Im constantly just loading the engine in a high gear and getting off the throttle releases a gun shot from the rear.

[mike@x-ph.com]

Originally Posted by Andrew@ActiveAutowerke

Driving with the windows up is a mistake. Open that Valve and listen to the music I drive like such an ass now with my mid pipe Im constantly just loading the engine in a high gear and getting off the throttle releases a gun shot from the rear.

You need to post a video

[SflBimmer8484]

Originally Posted by mike@x-ph.com

You need to post a video

I do but I honesty I dont think you ever be able to record the actual sound from the cabin but I'll try .

[JDE92M3]

Originally Posted by Andrew@ActiveAutowerke

I do but I honesty I dont think you ever be able to record the actual sound from the cabin but I'll try .

Tried my best and made a video few posts down boys . 100% agree video can only capture so much.

JD