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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Exhaust setup



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      08-06-2018, 12:14 AM   #1
redwildcat17
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Currently have a bmw performance exhaust and want to go full catless. Was wondering if anyone had a sound clip of a n55 335 with catless downpipes, secondary cat delete, and a pe exhaust. Was also wondering what it would sound like with just downpipes and the pe exhaust. Thanks
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      08-06-2018, 12:37 AM   #2
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just remove all the exhaust you'll be fine
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      08-06-2018, 10:27 PM   #3
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Unless you have an X drive, you have no secondary cats in the midpipes like the N54's do.

Heres a video of my exhaust at different stages.

Downpipe and PE muffler will be very loud on an N55

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      08-06-2018, 11:41 PM   #4
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Originally Posted by EB89 View Post
Unless you have an X drive, you have no secondary cats in the midpipes like the N54's do.

Heres a video of my exhaust at different stages.

Downpipe and PE muffler will be very loud on an N55

Wow that actually is pretty loud and does sound very good. I do have an xdrive so not sure how much different it would sound but hopefully similar.
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      08-07-2018, 10:53 PM   #5
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Quote:
Originally Posted by redwildcat17 View Post
Wow that actually is pretty loud and does sound very good. I do have an xdrive so not sure how much different it would sound but hopefully similar.
I think X Drive cars have the same cats in the mid pipes as N54s do. You would want to remove those.
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      08-07-2018, 10:55 PM   #6
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Quote:
Originally Posted by EB89 View Post
Quote:
Originally Posted by redwildcat17 View Post
Wow that actually is pretty loud and does sound very good. I do have an xdrive so not sure how much different it would sound but hopefully similar.
I think X Drive cars have the same cats in the mid pipes as N54s do. You would want to remove those.
That's what I figured. Was hoping someone had a sound clip as I've heard it may be a bit raspy
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      08-09-2018, 09:19 AM   #7
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I think the pe with dp and factory midpipe on xdrive will be perfect you dont want get rasp and drone which the straight through midpipe may do
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      08-09-2018, 03:40 PM   #8
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Don't mean to threadjack but I've been looking at the aFe Mach force xp but can't find any clips with catless downpipe on N55. All the clips I hear are with the stock catted DP. I might just take a gamble and see how it sounds.
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      08-09-2018, 04:35 PM   #9
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I have clips of Catted Exhaust with PE and OEM cat with PE.
do you want that?
I assume catless is ~10% louder?
est..
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      08-09-2018, 04:41 PM   #10
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Quote:
Originally Posted by maxihari View Post
I have clips of Catted Exhaust with PE and OEM cat with PE.
do you want that?
I assume catless is ~10% louder?
est..
Catted downpipes with pe? Sure thanks!
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      08-09-2018, 06:03 PM   #11
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Few short clips.

https://www.youtube.com/watch?v=1-0b...u6FHpg&index=1


https://www.youtube.com/watch?v=3TVO...b4y0j90au6FHpg

https://www.youtube.com/watch?v=o5ss...b4y0j90au6FHpg
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      08-16-2018, 10:21 PM   #12
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pe & dp & pkk
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      08-16-2018, 10:32 PM   #13
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      08-16-2018, 11:33 PM   #14
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Here's mine 2011 335i xDrive PE + PPK + Catless DP

First vid its me revving with engine warm and the other one is cold start video



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      08-16-2018, 11:38 PM   #15
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Quote:
Originally Posted by prime300 View Post
Here's mine 2011 335i xDrive PE + PPK + Catless DP

First vid its me revving with engine warm and the other one is cold start video



Holy shit that's loud, but exactly what I was looking for thanks! I just remembered I also have ppk flash so mine will sound exactly the same when I do downpipes next summer. So you still have the secondary cats in correct?
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      08-16-2018, 11:57 PM   #16
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Quote:
Originally Posted by redwildcat17 View Post
Quote:
Originally Posted by prime300 View Post
Here's mine 2011 335i xDrive PE + PPK + Catless DP

First vid its me revving with engine warm and the other one is cold start video



Holy shit that's loud, but exactly what I was looking for thanks! I just remembered I also have ppk flash so mine will sound exactly the same when I do downpipes next summer. So you still have the secondary cats in correct?
Yes still does..and it sounds 100x better in person (videos dont do justice) aha its not loud, its not quiet...just perfect!
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      08-17-2018, 06:07 PM   #17
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Quote:
Originally Posted by prime300 View Post
Yes still does..and it sounds 100x better in person (videos dont do justice) aha its not loud, its not quiet...just perfect!
if the mid pipes are still on in these vids i cant imagine what mine will sound like once i put my DP in...and i have a muffler delete as well...there goes the neighborhood and here comes the tickets
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      08-23-2018, 09:43 PM   #18
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      08-23-2018, 10:54 PM   #19
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So this is downpipes, pe, and deleted secondary cats? Wow
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      08-24-2018, 12:28 AM   #20
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Quote:
Originally Posted by redwildcat17 View Post
So this is downpipes, pe, and deleted secondary cats? Wow
Yup! Exactly..
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