BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
EXXEL Distributions
Post Reply
 
Thread Tools Search this Thread
      03-21-2022, 11:38 AM   #1
F1FL
Lieutenant
F1FL's Avatar
178
Rep
474
Posts

Drives: 2011 AW/FR E92 M3
Join Date: Sep 2015
Location: Jacksonville, FL

iTrader: (0)

High flow cats vs. catless suggestions

Hey all,

I'm running a full active autowerke exhaust with the race X pipe (catless) and rear section. It's honestly just too loud for me and I'm looking for an alternative.

Anyone have experience with the AA high flow cats added to the x pipe and rear section?
__________________
2011 E92 M3 | ZCP | Active Autowerke-headers back | Brembo 380mm f/r | OSS Headlights | Full Gloss Carbon Interior | AW/FR |
IG: loganflack_e92
Appreciate 0
      03-21-2022, 07:46 PM   #2
nycplumber
Major
682
Rep
1,221
Posts

Drives: slow
Join Date: Apr 2016
Location: nyc

iTrader: (0)

You could add cats and resonators or buy a valved rear section. Or do both and be extra quiet. Just adding a pair of cats and resonators will make it much quieter though
Appreciate 1
DrFerry6721.00
      03-22-2022, 11:18 AM   #3
mapster37
Captain
mapster37's Avatar
United_States
351
Rep
909
Posts

Drives: F80
Join Date: Sep 2018
Location: Davie

iTrader: (2)

I had active auto race x pipe (catless) paired with oem muffler. Deeper tone at idle and cruising. Very little drone. Only loud when u put the hammer down.
Appreciate 0
      03-22-2022, 11:58 AM   #4
eddyed11
Private
United_States
45
Rep
60
Posts

Drives: E90 M3
Join Date: Jan 2019
Location: CTX

iTrader: (3)

Quote:
Originally Posted by F1FL View Post
Hey all,

I'm running a full active autowerke exhaust with the race X pipe (catless) and rear section. It's honestly just too loud for me and I'm looking for an alternative.

Anyone have experience with the AA high flow cats added to the x pipe and rear section?
I used to have that setup. It wasn't obnoxiously loud but only droned a bit at around 3-4k rpms.

I have an akra rear now with the AA catted xpipe because I wanted something a bit more quiet.
Appreciate 0
      03-22-2022, 01:48 PM   #5
jaymotors
Registered
3
Rep
4
Posts

Drives: 2011 BMW 550i
Join Date: Mar 2022
Location: Seattle, WA

iTrader: (0)

Quote:
Originally Posted by eddyed11 View Post
I used to have that setup. It wasn't obnoxiously loud but only droned a bit at around 3-4k rpms.

I have an akra rear now with the AA catted xpipe because I wanted something a bit more quiet.
How is the drone now? Much better or is it still there?
Appreciate 0
      03-22-2022, 02:12 PM   #6
eddyed11
Private
United_States
45
Rep
60
Posts

Drives: E90 M3
Join Date: Jan 2019
Location: CTX

iTrader: (3)

Quote:
Originally Posted by jaymotors View Post
Quote:
Originally Posted by eddyed11 View Post
I used to have that setup. It wasn't obnoxiously loud but only droned a bit at around 3-4k rpms.

I have an akra rear now with the AA catted xpipe because I wanted something a bit more quiet.
How is the drone now? Much better or is it still there?
Nope. No more drone.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:16 PM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST