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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > AE Performance Exhaust Review & Pics



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      04-28-2009, 04:42 PM   #45
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Quote:
Originally Posted by scottp999 View Post
We did not take pics during the install since the guys wanted to get out and fish that afternoon. Will be putting on an Intercooler within a month and get the car back up on the lift again and get some good pics. Same guys (Sniz and Clem) installed my former exhaust, on Sniz's e92 before it's demise, and they mentioned how great the AE fitment was, and how fast the install went with the AE, compared to the wrestling they went through to get everything lined up with the Britalman.

I still have a smile on my face about this purchase! Thanks!
You're very welcome! Thank you for the kind words.

Quote:
Originally Posted by stressdoc View Post
How about an E92 rear brace? Would that clear? I do not like the idea of anything touching the exhaust, and I really need a rear brace after stiffening up the suspension on my car. Thanks!
The E92 rear brace clears without a problem. It provides just enough clearance over the Hotchkis brace which should really have come with something to shim it if needed. It has less clearance than that factory less than sufficient E90 brace, which was a dire mistake, IMO.
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      07-08-2009, 11:04 PM   #46
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Did the exhaust come with any instructions with torque specs? I'm kinda crazy about torquing everything exactly

I'm contemplating pulling the trigger on this one and renting a spot at my local garage where they have a lift. Planning to do the exhaust swapperoo on my own...

Your car and mine look like twins... thanks for the awesome preview!
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      07-09-2009, 01:04 PM   #47
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Quote:
Originally Posted by scooby9 View Post
Did the exhaust come with any instructions with torque specs? I'm kinda crazy about torquing everything exactly

I'm contemplating pulling the trigger on this one and renting a spot at my local garage where they have a lift. Planning to do the exhaust swapperoo on my own...

Your car and mine look like twins... thanks for the awesome preview!
Mine did not. Instructions are not really needed as its pretty obvious which parts go where. Torque specs would be nice, but I just went with the German standard "gutten-tite".
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      07-09-2009, 02:28 PM   #48
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Nick -- is that an M-tech diffuser for the quad setup?
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      07-09-2009, 02:32 PM   #49
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very nice
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      07-09-2009, 03:38 PM   #50
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Quote:
Originally Posted by scooby9 View Post
Did the exhaust come with any instructions with torque specs? I'm kinda crazy about torquing everything exactly

I'm contemplating pulling the trigger on this one and renting a spot at my local garage where they have a lift. Planning to do the exhaust swapperoo on my own...

Your car and mine look like twins... thanks for the awesome preview!
I had AE install my exhaust. I don't recall instructions in the box. The install should be pretty self-explanatory, though. Just make sure you have a truck to haul off the stock exhaust as it's all one piece, large, and heavy. I have no idea what the torque specs are, but "gutten-tite" sounds about right for this application.

Quote:
Originally Posted by therealm3 View Post
Mine did not. Instructions are not really needed as its pretty obvious which parts go where. Torque specs would be nice, but I just went with the German standard "gutten-tite".
+1

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Originally Posted by mkPOTO View Post
very nice
Thank you. The exhaust sounds even better now 3 months later as it mellowed some.
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      07-09-2009, 03:41 PM   #51
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Quote:
Originally Posted by cbad335 View Post
Thank you. The exhaust sounds even better now 3 months later as it mellowed some.

i've had mine on for 20k miles or something now... it really is the perfect exhaust
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      07-09-2009, 04:35 PM   #52
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A perfect fit! Well done.

Sound clips?
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      07-09-2009, 04:38 PM   #53
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Quote:
Originally Posted by 645Nm View Post
A perfect fit! Well done.

Sound clips?
Thanks. Unfortunately, I'm not that technologically advanced. I believe there are plenty of others that have posted AE sound clips, including "tunnel clips."
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      07-09-2009, 05:30 PM   #54
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Quote:
Originally Posted by cbad335 View Post
Thank you. The exhaust sounds even better now 3 months later as it mellowed some.
interesting as 3-4 months later, I find mine is slightly louder.
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      07-09-2009, 05:40 PM   #55
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Quote:
Originally Posted by therealm3 View Post
interesting as 3-4 months later, I find mine is slightly louder.
I should have been more specific. I meant mellowed in tone/sound character. It certainly hasn't diminished in volume.
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      07-09-2009, 06:30 PM   #56
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does this exhaust make power?
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      07-09-2009, 06:51 PM   #57
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Quote:
Originally Posted by jonm42 View Post
Nick -- is that an M-tech diffuser for the quad setup?
Yessir. On my personal car I run a Duke Dynamics quad diffuser on my quad exhaust.


Quote:
Originally Posted by jpsimon View Post
i've had mine on for 20k miles or something now... it really is the perfect exhaust

Quote:
Originally Posted by 645Nm View Post
A perfect fit! Well done.

Sound clips?
I have some! Check out our youtube page- www.youtube.com/aeperformance
Quote:
Originally Posted by dlbrooks18 View Post
does this exhaust make power?
Of course. We wouldn't have released it if it didnt make any power. We recorded 12whp and 9wtq on a Dynamic Dynamometer on an otherwise completely stock vehicle. It is a complete downpipe back exhaust system WITHOUT an X-Pipe to maximize flow (equals more power on a turbo car with less backpressure), not to mention it is completely mandrel bent to rid you of the terribly contorted bends of the stock exhaust that definitely restrict flow as well. It's then topped off with custom mufflers that are tailored specifically to the N54 motor to ensure proper sound levels. No off the shelf generics here.

GIAC is using our exhaust system on their car, and used it during tuning. Aside from that, they're also using my personal car for testing and tuning at the moment.

PM/Email/Call if you have any questions and I'll be glad to help!
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      07-09-2009, 07:34 PM   #58
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Quote:
Originally Posted by Nick@AEPerformance View Post
The E92 rear brace clears without a problem. It provides just enough clearance over the Hotchkis brace which should really have come with something to shim it if needed. It has less clearance than that factory less than sufficient E90 brace, which was a dire mistake, IMO.
I think this has been mentioned somewhere, but I can't seem to find the specific thread; will the AE clear the stock rear brace on an e90? Expecting delivery of my AE exhaust anytime and want to make sure it'll fit without any issues.

Cheers!
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      07-09-2009, 10:58 PM   #59
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car looks great man
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      07-10-2009, 01:25 PM   #60
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Quote:
Originally Posted by paullo View Post
I think this has been mentioned somewhere, but I can't seem to find the specific thread; will the AE clear the stock rear brace on an e90? Expecting delivery of my AE exhaust anytime and want to make sure it'll fit without any issues.

Cheers!
Are you talking about this one?



If so, mine with the HFCs did rub ever so slightly. I had to shim the brace a bit to clear it. Without the HFC I don't see how it would be an issue. Nick said they hadn't seen it before so maybe my car is an anomaly or the pipes I have are ever so slightly off from the spec AE intended. Ever since I shimmed it I haven't heard it touch (I got vibration in the car before).

Hopefully that helps.
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      07-10-2009, 01:33 PM   #61
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Yep

That about answers that one for me. Thanks very much for the info and pic; will help come install time; but it looks like I should be okay- going catless.
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      07-11-2009, 06:16 AM   #62
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Quote:
Originally Posted by cbad335 View Post
Thanks. Unfortunately, I'm not that technologically advanced. I believe there are plenty of others that have posted AE sound clips, including "tunnel clips."
Okay will check it out!
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      07-11-2009, 09:38 AM   #63
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Here are some of my videos.

Take off (from outside):


Demonstrating how quiet a fully catless car can be (inside):


On dyno (outside):


revving in place (outside):


tunnel vid (inside):
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Last edited by jpsimon; 07-23-2009 at 01:08 PM.
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      07-20-2009, 09:13 PM   #64
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Quote:
Originally Posted by jpsimon View Post
Here are some of my videos.

Take off (from outside):


Demonstrating how quiet a fully catless car can be (inside):


On dyno (outside):


revving in place (outside):


tunnel vid (inside):
Awesome! Thanks for posting!
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      07-27-2009, 12:46 PM   #65
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Nick -- do you have a preference on the m-tech vs. the Duke Dynamics?
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      07-27-2009, 01:44 PM   #66
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veeeeeery nice exhaust thinking of maybe buying that one for my car ... 2 bad the tips are only 3.5" and not 4" at least ...
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