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      01-22-2016, 04:47 PM   #23
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I am runing the AA mid with the stock rear and so far I am very pleased. I get to maintain the use of the exhaust flaps when I have to tote around a client and the butt dyno tells me there were definite gains with the mid only. Active8 tune is on the way with a set of black Active tips..
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      01-22-2016, 04:51 PM   #24
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Quote:
Originally Posted by David@ActiveAutowerke View Post
Yesterday we strapped a bone stock M4 down on our Mustang dyno for some baseline runs. We then installed our signature mid pipe and rear exhaust system and ran the car on the dyno again. Below is the dyno sheet and raw data from before and after.
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Originally Posted by Irishace View Post
David. Were theses numbers with stock downpipes mated to the AA mid section and rear or were there aftermarket downpipes on the car?
I take it that it was a bone stock car with JUST AA mid and rear. NO catless downpipes.
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      01-22-2016, 04:54 PM   #25
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Ask and you shall receive.

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      01-22-2016, 04:58 PM   #26
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Quote:
Originally Posted by David@ActiveAutowerke View Post
[center][b]Active Autowerke | F8X Exhaust System and Mid-Pipe Technical Overview

All of our F8X systems are hand made here at our facility in Miami, Florida. The fitment on each unit is tested prior to shipping, and with in house quality control we can ensure that each system is manufactured to our standards.

Post is in desperate need of some sound clips especially of the claimed smoother sound delivery - realize very hard to capture on most recording devices but a comparo with stock at least would be very useful - Thx! May already be links o the forum to this - sorry have not searched yet!
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      01-22-2016, 05:06 PM   #27
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Stolen from the Auto Talent thread:



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      01-22-2016, 11:14 PM   #28
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Looks like tune has an advantage

I have bms intakes, else stock with 93 fuel. Should we have some fun!? I'll go to MAP here in MN and run a few dyno pulls after aa cat back install?

Might have to do an over under on my hp outcome...? ??
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      01-23-2016, 03:05 AM   #29
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Always loved the sound of AA exhausts.
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      01-24-2016, 03:23 PM   #30
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Quote:
Originally Posted by schnazzy View Post
Always loved the sound of AA exhausts.
+1
I have been a fan of their exhausts on all platforms but this exhaust is by far their best
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      01-25-2016, 10:19 AM   #31
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Quote:
Originally Posted by mike@x-ph.com View Post
+1
I have been a fan of their exhausts on all platforms but this exhaust is by far their best
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      01-25-2016, 11:28 AM   #32
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Is it possible to install the AA mid pipe with ER DP and OEM exhaust without cutting or making any other mods?
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      01-25-2016, 11:50 AM   #33
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Quote:
Originally Posted by tinpot View Post
Is it possible to install the AA mid pipe with ER DP and OEM exhaust without cutting or making any other mods?
You can install our mid pipe with the ER DP with no issues. However, since the OEM exhaust is a single piece (the mid section and muffler are made as one unit), you will have to cut the rear muffler section off and attach our mid pipe via OEM BMW clamps (the same way you would install a BMW Performance muffler).
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      01-25-2016, 06:44 PM   #34
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It's unfortunate they chose to make the original exhaust as just 1 big piece. Kudos to AA for the great pieces though.
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      01-25-2016, 07:45 PM   #35
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Quote:
Originally Posted by ciaranob View Post
Post is in desperate need of some sound clips especially of the claimed smoother sound delivery - realize very hard to capture on most recording devices but a comparo with stock at least would be very useful - Thx! May already be links o the forum to this - sorry have not searched yet!
Here are some clips if you are interested in hearing their exhaust with catless downpipes...

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      01-25-2016, 10:02 PM   #36
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Quote:
Originally Posted by marcus321
Quote:
Originally Posted by ciaranob View Post
Post is in desperate need of some sound clips especially of the claimed smoother sound delivery - realize very hard to capture on most recording devices but a comparo with stock at least would be very useful - Thx! May already be links o the forum to this - sorry have not searched yet!
Here are some clips if you are interested in hearing their exhaust with catless downpipes...

Ahhhh that sweet music sounds so familiar! lol
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      01-26-2016, 12:33 PM   #37
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Quote:
Originally Posted by David@ActiveAutowerke View Post
I will make a note to dyno the next car we get in for a mid-pipe only. As long as the customer is cool with it it shouldn't be a problem.
I think a lot of people want to hear some good sound clips of your AA mid-pipe with the stock rear muffler (under load / driving) with valves open and closed. Obviously deleting the secondary cats and the X-reso box makes the sound louder but would be nice to gauge how your mid-pipe changes the raspy sound of the stock mid-pipe. Maybe I should be the guinea pig and make some nice vids!
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      01-26-2016, 02:19 PM   #38
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Love this exhaust

Can't go wrong with the full system or just midpipe and downpipes!



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      01-26-2016, 06:36 PM   #39
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Hey David can you shoot me a PM about this exhaust? Had a few questions.
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      01-26-2016, 09:10 PM   #40
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Quote:
Originally Posted by Charlie@McKennaBMWService View Post
Hey David can you shoot me a PM about this exhaust? Had a few questions.
There's a good bit of info on this system on the forum. I've been running it since day one. Anything I can help with?

If it's about pricing, he's the man to talk to!
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      01-27-2016, 09:11 AM   #41
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I remember listening to you dyno that thing, jesus it was loud.
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      01-27-2016, 09:55 AM   #42
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Quote:
Originally Posted by RussianPete View Post
I remember listening to you dyno that thing, jesus it was loud.
It was definitely loud in the shop, although I can still think of something that's even louder
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      01-27-2016, 09:56 AM   #43
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Quote:
Originally Posted by Kr3st View Post
There's a good bit of info on this system on the forum. I've been running it since day one. Anything I can help with?

If it's about pricing, he's the man to talk to!
Pricing, hahaha but thank you.
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      01-27-2016, 10:32 AM   #44
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Quote:
Originally Posted by David@ActiveAutowerke View Post
It was definitely loud in the shop, although I can still think of something that's even louder
My exhaust is too loud, i swear. im already selling it
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