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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > Evolution Racewerks B58 4.5" Catless Downpipes Released!!! Pics and DYNO POSTED!!
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      05-30-2016, 08:40 PM   #45
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Guys how hard is it to remove this and go back to stock after a few years?
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      05-30-2016, 09:55 PM   #46
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Quote:
Originally Posted by soultraveler00 View Post
Guys how hard is it to remove this and go back to stock after a few years?
Bump because that's what I am trying to find out too!
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      05-30-2016, 10:35 PM   #47
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Bump because that's what I am trying to find out too!
Yea I'm tired of waiting for the power and sound kit. This DP and a tune from Enzo or Jb4 would be awesome.
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      05-30-2016, 10:37 PM   #48
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Quote:
Originally Posted by soultraveler00
Quote:
Originally Posted by HitmanHearns View Post
Bump because that's what I am trying to find out too!
Yea I'm tired of waiting for the power and sound kit. This DP and a tune from Enzo or Jb4 would be awesome.
Is Enzo able to tune these engines?
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      05-30-2016, 10:43 PM   #49
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Do we know the status of the new charge pipe?
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      05-31-2016, 02:35 AM   #50
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All the N55 people getting angry at the B58 power output stock and with a couple mods.

All joking aside though....can the JB4 code out the CEL? I imagine it can. Any word on how this mates up to the AWE Mid+Exhaust?
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      05-31-2016, 03:19 AM   #51
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Remember on a dyno the absolute number isn't that relevant as some dynos ready high some read low. The important number is the delta. Don't get too caught up on absolute values.
Agreed - see my comment in post # 51

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Originally Posted by Bee Pee View Post
Nonetheless the gains are good for a std car with DP added, regardless of crank or wheel figures....
Different dynos, conditions, gear used and dyno operator will yield different numbers my read of this is these wheel figures are over-cooked.
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      05-31-2016, 08:02 AM   #52
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Would love to see someone put the car is sport +, pull the shifter into manual mode and actually run the car to 7k to see what power it is putting out up top. I'm curious if the car is holding power that high. Great numbers here; will be a rocket with the JB4.
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      05-31-2016, 09:00 AM   #53
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Quote:
Originally Posted by Ecks View Post
All the N55 people getting angry at the B58 power output stock and with a couple mods.

All joking aside though....can the JB4 code out the CEL? I imagine it can. Any word on how this mates up to the AWE Mid+Exhaust?
Yes the JB4 can remove the CEL from the dash for you

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      05-31-2016, 09:01 AM   #54
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Quote:
Originally Posted by soultraveler00 View Post
Guys how hard is it to remove this and go back to stock after a few years?
Its a 1-2 hour job. Pretty simple.

Mike
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      06-01-2016, 12:46 PM   #55
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      06-01-2016, 05:03 PM   #56
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Does anyone have a dyno for the f30
335i stock with ER downpipe to see the gains made. Would be interesting to see how much more this half inch width and newer product makes on the b58 over n55
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      06-07-2016, 12:39 PM   #57
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Quote:
Originally Posted by Sodhi16 View Post
Does anyone have a dyno for the f30
335i stock with ER downpipe to see the gains made. Would be interesting to see how much more this half inch width and newer product makes on the b58 over n55
There's plenty of stock dyno's out there of the 340. Mine threw down 338whp and 357tq stock. Now I have a full AWE exhaust sans downpipe.
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      06-08-2016, 11:34 PM   #58
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Quote:
Originally Posted by Ecks View Post
There's plenty of stock dyno's out there of the 340. Mine threw down 338whp and 357tq stock. Now I have a full AWE exhaust sans downpipe.
Very nice i was thinking about putting in an order for the full awe exhaust as well. Do you think with the ER downpipe it would be a little too loud. I'm coming from a 2010 m5 with meisterschaft exhaust which was loud but to my ears had a lovely sound. Just don't want it to be an annoying loud sound.
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      06-09-2016, 02:32 AM   #59
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once you go catless, its hard to go back. You will miss the power, the sounds, the lack of lag, etc.


Quote:
Originally Posted by soultraveler00 View Post
Guys how hard is it to remove this and go back to stock after a few years?
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      06-09-2016, 09:03 AM   #60
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Quote:
Originally Posted by eluded View Post
once you go catless, its hard to go back. You will miss the power, the sounds, the lack of lag, etc.
+1

Catless downpipes on a turbo car is one of the best mods you can do (after a tune)

Mike
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      06-10-2016, 07:56 AM   #61
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I just looked at my stock downpipe and it appears that there are 2x O2 sensors? Is that possible? The DP appears to only come with 1x but there is the option for an additional bung.
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      06-10-2016, 09:38 AM   #62
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Quote:
Originally Posted by mtx450
I just looked at my stock downpipe and it appears that there are 2x O2 sensors? Is that possible? The DP appears to only come with 1x but there is the option for an additional bung.
There's two, look at the pic on the first post.
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      06-10-2016, 09:59 AM   #63
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Quote:
Originally Posted by NICKTENN View Post
There's two, look at the pic on the first post.
Oh, so the extra would be a 3rd? The description is a little misleading. Makes you think it only comes with one.
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      06-12-2016, 01:45 PM   #64
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Guys i'm placing an order for this and want to combine it with the AWE exhaust w/mid pipe. Should i get the downpipe in brushed or polished? Does it matter? Will i need the extra O2 Bung or EGT Bung? I'm not sure what these are. Id appreciate the help.
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      06-13-2016, 03:04 PM   #65
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Quote:
Originally Posted by soultraveler00 View Post
Guys i'm placing an order for this and want to combine it with the AWE exhaust w/mid pipe. Should i get the downpipe in brushed or polished? Does it matter? Will i need the extra O2 Bung or EGT Bung? I'm not sure what these are. Id appreciate the help.
Get downpipes in brushed.. Its a standard finish. You will never see it after install.

Mike
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      06-14-2016, 09:33 AM   #66
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Hopefully a high-flow catted downpipe will come out soon. I like the power gains, but don't care much for the noise from going catless.
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