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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Active Autowerke n52 Exhaust Review



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      10-07-2012, 09:15 PM   #1
GermanMuscle
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Talking Active Autowerke n52 Exhaust Review

So far, this is exhaust has been on my car for two weeks. The exhaust is definitely best bang for the buck, since it provides a really good sound and Andrew at AA has confirmed that there is a power gain from stock. Also, the exhaust is 18lbs lighter than stock. I also want to point out that this exhaust does increase mpg, so all the other owners out there see if it's the same for you, 23.7mpg --->> 25.4mpg. Not to mention that I have been flooring it at lights and in the deck to hear the exhaust , so it probably gives even more than that. The only down fall is the drone around 2-2.5k rpm. Other than that, this is probably the best option if you don't want to drop 1k on the exhaust.
Overall:
Pros
Medium Loud Exhaust
More Power
Better Mpg
18lbs Lighter
Cons
Drone around 2-2.5k rpm

Here's a quick comparison from stock:

Launch/Drive By/Pop Sound when coming to a stop
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      10-07-2012, 10:33 PM   #2
mapleridge
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The dreaded drone...how I hate it. A lot of pros there. If only that drone could be destroyed.
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      10-08-2012, 01:39 PM   #3
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OMG! Someone who knows how to edit their videos! Sounds great.
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      10-08-2012, 02:03 PM   #4
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Quote:
Originally Posted by e90pilot View Post
OMG! Someone who knows how to edit their videos!
Ha!
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      10-08-2012, 07:24 PM   #5
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Anybody on here make the switch from the BMW PE to the AA exhaust? if so lemme kno how you feel about the two, been contemplating dropping my PE for the AA. If anyones interested on my PE shoot me a PM will work out some deals and would prefer local NY/NJ/CT/PA
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      10-08-2012, 07:48 PM   #6
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Originally Posted by e90pilot View Post
OMG! Someone who knows how to edit their videos! Sounds great.
Thanks, the video quality wasn't great IMO, but its about how it sounds anyway.
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      10-08-2012, 07:50 PM   #7
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Quote:
Originally Posted by E90-07 View Post
Anybody on here make the switch from the BMW PE to the AA exhaust? if so lemme kno how you feel about the two, been contemplating dropping my PE for the AA. If anyones interested on my PE shoot me a PM will work out some deals and would prefer local NY/NJ/CT/PA
Haha, I was actually thinking about getting a PE on my car and see which one sounds better.
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      10-09-2012, 01:14 AM   #8
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Sounds good. If I didn't already have the PE I would jump on this like Mila Kunis.
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      10-09-2012, 05:34 AM   #9
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Quote:
Originally Posted by E90-07 View Post
been contemplating dropping my PE for the AA.
Don't do it! That AA sounds 'muted' after a PE in my view. And who would knowingly change from a no-drone to a drone exhaust?
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      10-10-2012, 12:04 PM   #10
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I kno it sounds kinda weird but hearing it in person will give me a better idea of the sound... i always thought the PE sounded like crap cause all these youtube videos dnt do justice until you hear it in person... and then i just bought it and it still has me smiling on startups. esp cold starts. if i end up keeping it i may just delete my secondary cats at the end of the month. gotta pass inspection this month first lol
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      10-10-2012, 04:15 PM   #11
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did you leave the rest of the exhaust completely stock (kept the resonator section) and only replaced the muffler?

You didn't delete the resonator, right?
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      10-10-2012, 05:21 PM   #12
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Quote:
Originally Posted by Phil325i View Post
Don't do it! That AA sounds 'muted' after a PE in my view. And who would knowingly change from a no-drone to a drone exhaust?
I've only listened from inside the car, but aside from the rpm range mentioned it doesn't sound loud. You definitely know it's there, but above 2.5k rpm you're certainly not going to have your passengers complaining or the police pulling you over for a noise violation.
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      10-11-2012, 10:18 PM   #13
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The drone isn't that bad in my opinion. Now, if you ride in my friend's straight pipe mustang gt, you would be like
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      10-11-2012, 10:30 PM   #14
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Quote:
Originally Posted by upstatedoc View Post
Ha!
how are you liking the stage 2 software? I was thinking about going for it but always talk myself out of it right when i'm ready lol.
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