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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 > Headers+Mids+PE = kinda alright! (update)



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      11-11-2016, 03:11 PM   #45
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Glad your kind of enjoying my headers! I loved them
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      11-11-2016, 03:17 PM   #46
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Originally Posted by mpaone23 View Post
Glad your kind of enjoying my headers! I loved them
Totally!

I was gritting my teeth at buying another header after the last one went to the wrecker on my old car, this way isn't so bad either.
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      11-11-2016, 03:36 PM   #47
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Originally Posted by TheAxiom View Post
Totally!

I was gritting my teeth at buying another header after the last one went to the wrecker on my old car, this way isn't so bad either.
Awesomee. I only had the stock exhaust when I had them on the car so once you're happy with the setup id like to hear some sounds clips.
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      11-11-2016, 03:40 PM   #48
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Originally Posted by mpaone23 View Post
Awesomee. I only had the stock exhaust when I had them on the car so once you're happy with the setup id like to hear some sounds clips.
I had it with stock exhaust, with PE and stock mids, and now PE, SS mids - stock mids were my favorite.
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      11-11-2016, 05:30 PM   #49
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My other car was so loud with headers and PE!

With SS mids I could only imagine
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      11-11-2016, 05:36 PM   #50
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Quote:
Originally Posted by Mike. View Post
My other car was so loud with headers and PE!

With SS mids I could only imagine
Imagine with a Burns race muffler instead of the PE! w00tz!

Ya know, it's gets quieter every time I start it up... lol
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      11-11-2016, 08:46 PM   #51
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Quote:
Originally Posted by justpete View Post
Imagine with a Burns race muffler instead of the PE! w00tz!

Ya know, it's gets quieter every time I start it up... lol
You aren't imagining things quieting down. The fill inside those Coast Fab cans settles and quiets the exhaust note from raucous to just right. Give it a couple of months.
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      11-11-2016, 09:59 PM   #52
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Quote:
Originally Posted by tetsuo111 View Post
You aren't imagining things quieting down. The fill inside those Coast Fab cans settles and quiets the exhaust note from raucous to just right. Give it a couple of months.
Forgot about that, thanks. Going to make some SPL measurements with an old RS meter tomorrow after I get it home. And using a phone app some measurements in the cabin while driving.
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      11-11-2016, 10:07 PM   #53
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Quote:
Originally Posted by justpete View Post
Going to make some SPL measurements with an old RS meter tomorrow after I get it home.
Lol - I used to use one of those old RS meters for audio. Now it's all done digitally or with an analog 1/3 octave RTA. I suppose I could drag the RTA and mic to the car for a better "listen" to the exhaust...
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      11-11-2016, 10:17 PM   #54
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Quote:
Originally Posted by tetsuo111 View Post
Lol - I used to use one of those old RS meters for audio. Now it's all done digitally or with an analog 1/3 octave RTA. I suppose I could drag the RTA and mic to the car for a better "listen" to the exhaust...
Yeah, that'd be cool but it's all I've got anymore. Just looking for a handle on how loud it is relative to track limits here and there. Fifty feet to the side I think is the measurement method, can't remember what weighting though, gotta look it up.
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      11-11-2016, 10:19 PM   #55
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Didn't mean for the comment to come across as disparaging - the RS meter is the 57 Chevy of SPL meters, having been around forever, for good reason. It will be perfectly satisfactory for this application.
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      11-11-2016, 10:36 PM   #56
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Quote:
Originally Posted by tetsuo111 View Post
Didn't mean for the comment to come across as disparaging - the RS meter is the 57 Chevy of SPL meters, having been around forever, for good reason. It will be perfectly satisfactory for this application.
Wasn't taken that way, not to worry. It's a cheap ole' standby but the dial switch is sorta flakey, hasn't been used in years and years.
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      11-12-2016, 01:46 PM   #57
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Stage 3 BPC software installed (ALFA N) that 7500RPM redline Is the real deal.

Last edited by Taskmaster; 11-12-2016 at 04:52 PM..
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      11-12-2016, 02:59 PM   #58
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Quote:
Originally Posted by TheAxiom View Post
Stage 3 BCP software installed (ALFA N) that 7500RPM redline Is the real deal.
With the Euro IAT sensor? Any problems? And let us know how it runs around town. Probably doesn't matter a whole lot until it get hot outside...
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      11-12-2016, 03:18 PM   #59
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Quote:
Originally Posted by TheAxiom View Post
Stage 3 BCP software installed (ALFA N) that 7500RPM redline Is the real deal.
7.5k?!!!

Woo-hoo! 7.5k redline 328i. You win. That redline and your exhaust must make some very sexy noise.

Wait a sec - at what point does VANOS go from asset to liability (rotational speed)? BMW's still uses ITBs on the high-revving motors. I wonder how fast a VANOS motor can spin before complications?

Congrats
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      11-12-2016, 04:52 PM   #60
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Quote:
Originally Posted by justpete View Post
With the Euro IAT sensor? Any problems? And let us know how it runs around town. Probably doesn't matter a whole lot until it get hot outside...

I was taking a nap, but yeah with the IAT sensor in. The car started up beautifully, fuel economy actually seems a little bit better and that high redline is tempting. However:

I have a CEL on, which I need to check out what it is.
The idle bounces...kinda annoying, and I hope it goes away.

Quote:
Originally Posted by tetsuo111 View Post
7.5k?!!!

Woo-hoo! 7.5k redline 328i. You win. That redline and your exhaust must make some very sexy noise.

Wait a sec - at what point does VANOS go from asset to liability (rotational speed)? BMW's still uses ITBs on the high-revving motors. I wonder how fast a VANOS motor can spin before complications?

Congrats
The car is SO loud, I've done a WOT pull twice. I'll be making some exhaust changes for sure, this isn't going to last in it's current state.

As far as the redline goes, the S55 M3/M4 motors use valvetronic and have a 7700RPM redline, as well as some of the same springs and rockers that the N52 does, so I think we are safe.
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      11-12-2016, 04:57 PM   #61
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Quote:
Originally Posted by TheAxiom View Post
I was taking a nap, but yeah with the IAT sensor in. The car started up beautifully, fuel economy actually seems a little bit better and that high redline is tempting. However:

I have a CEL on, which I need to check out what it is.
The idle bounces...kinda annoying, and I hope it goes away.
I asked Bob about the CEL for the missing MAF and he said they suppress it in the Alpha-N tune. Might be due to the IAT sensor needing to calibrate but I can't remember right offhand what the sequence is, if any.

Quote:
Originally Posted by TheAxiom View Post
The car is SO loud, I've done a WOT pull twice. I'll be making some exhaust changes for sure, this isn't going to last in it's current state.

As far as the redline goes, the S55 M3/M4 motors use valvetronic and have a 7700RPM redline, as well as some of the same springs and rockers that the N52 does, so I think we are safe.
Really surprised you consider the exhaust loud. I figure if the windows aren't shaking it's not too loud. And if they are then it's just right.

Pretty sure VANOS isn't rpm sensitive until the latency of the solenoids becomes a problem and I don't think that's within any reasonable rpm range.
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      11-12-2016, 05:03 PM   #62
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Quote:
Originally Posted by justpete View Post
I asked Bob about the CEL for the missing MAF and he said they suppress it in the Alpha-N tune. Might be due to the IAT sensor needing to calibrate but I can't remember right offhand what the sequence is, if any.



Really surprised you consider the exhaust loud. I figure if the windows aren't shaking it's not too loud. And if they are then it's just right.

Pretty sure VANOS isn't rpm sensitive until the latency of the solenoids becomes a problem and I don't think that's within any reasonable rpm range.
Hey now! I know I'm younger in age, but I feel older sometimes. Me complaining about this exhaust is one of those moments

I'll pull the code and get back to you.
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      11-12-2016, 05:06 PM   #63
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Originally Posted by TheAxiom View Post
Hey now! I know I'm younger in age, but I feel older sometimes. Me complaining about this exhaust is one of those moments

I'll pull the code and get back to you.
I was gonna say if it's too loud...
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      11-12-2016, 05:20 PM   #64
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2d27 UNknown
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2D5A control motor torque limitation

Cleared the codes and 2D27 came right back.
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      11-12-2016, 09:19 PM   #65
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Quote:
Originally Posted by tetsuo111 View Post
7.5k?!!!

Woo-hoo! 7.5k redline 328i. You win. That redline and your exhaust must make some very sexy noise.

Wait a sec - at what point does VANOS go from asset to liability (rotational speed)? BMW's still uses ITBs on the high-revving motors. I wonder how fast a VANOS motor can spin before complications?

Congrats
Uh... Vanos has no spinning components.. Theres no vanos "motor", it all runs on oil pressure.
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      11-12-2016, 11:23 PM   #66
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Quote:
Originally Posted by hassmaschine View Post
Quote:
Originally Posted by tetsuo111 View Post
7.5k?!!!

Woo-hoo! 7.5k redline 328i. You win. That redline and your exhaust must make some very sexy noise.

Wait a sec - at what point does VANOS go from asset to liability (rotational speed)? BMW's still uses ITBs on the high-revving motors. I wonder how fast a VANOS motor can spin before complications?

Congrats
Uh... Vanos has no spinning components.. Theres no vanos "motor", it all runs on oil pressure.
Of course. I stand corrected. Meant Valvetronic.
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