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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 > Catless Downpipes affect exhaust noise?



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      07-17-2011, 04:16 PM   #1
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Catless Downpipes affect exhaust noise?

Hey guys, I have a muffler delete on my e92 335i and it sounds pretty badass. I'm going to get catless downpipes soon and I was wondering will it make the sound much louder?

Or should I just get catted dp's
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      07-17-2011, 04:18 PM   #2
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Is this a troll thread?
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      07-17-2011, 04:20 PM   #3
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Quote:
Originally Posted by remington109 View Post
Is this a troll thread?
lol..

I know it will make it somewhat louder, but Im asking will it make it SIGNIFICANTLY LOUDER WHERE I CANT HEAR MYSELF THINK
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      07-17-2011, 04:22 PM   #4
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I'd get catless and install resonators later if you don't like the sound
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      07-17-2011, 04:42 PM   #5
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I don't have a cat delete but I have cattless downpipes it's definitely louder than stock and it sounds mean at wot but I'm still planning on getting the bastuck exhaust cuz I don't think it'll be obnoxiously loud at all.
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      07-17-2011, 04:47 PM   #6
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Hye es aper?

Ive been looking for videos of muffler deleted+catless dp'd e92's but have found none :/
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      07-17-2011, 05:09 PM   #7
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Catless DPs will make the exhaust sound deeper, and slightly louder. The effect is mostly on tone not overall loudness.

Mike

Last edited by Mike@N54Tuning.com; 07-17-2011 at 05:24 PM..
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      07-17-2011, 05:18 PM   #8
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Oh, thank you. That will be perfect considering my car is loud as hell right now
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      07-17-2011, 05:25 PM   #9
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Quote:
Originally Posted by System Of A... View Post
Oh, thank you. That will be perfect considering my car is loud as hell right now
Its a nice sound.. Very throaty. I am sure you will love it!

Mike
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      07-17-2011, 05:40 PM   #10
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Smell for me? Or the people behind me
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      07-17-2011, 05:52 PM   #11
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:/ Is it a horrid smell. Damn it.
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      07-17-2011, 08:13 PM   #12
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It does smell. For example, when you're waiting in a drive through the smell is very noticeable.
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      07-17-2011, 08:23 PM   #13
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And there is nothing I can do about that smell?
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      07-17-2011, 08:37 PM   #14
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People always comlpain on these forums but I honestly hardly even notice the smell. The only time your going to smell it is when your getting something in the trunk and the cars running.. occasionally if you make an abrupt stop you might get a wiff.

The turbo somewhat diminishes the smell as well. Its nowhere near the level of my catless e46 M3.


Oh and catless DP's will make your car considerably louder. If your running a muffler delete already I would even go so far as to say its going to be overwhelming. Your going to get a ton of drone as well.
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      07-17-2011, 08:58 PM   #15
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I get drone anyway, Im used to it. Is it a nice loud though? Or is it a wtf did you do to your car loud.

In my opinion, my muffler delete made my car an ORGASMIC loud. So thats how I think lol
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      07-17-2011, 09:54 PM   #16
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Muffler delete + catless downpipe? do you have 2nd cats in place? if zero cats & mufflers....I wanna hear it
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      07-17-2011, 10:01 PM   #17
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Quote:
Originally Posted by creaminz View Post
Muffler delete + catless downpipe? do you have 2nd cats in place? if zero cats & mufflers....I wanna hear it
Why don't you try it out and just sell your Vanguard to mee
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      07-17-2011, 10:30 PM   #18
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Quote:
Originally Posted by System Of A... View Post
And there is nothing I can do about that smell?
http://www.summitracing.com/parts/MOC-19769-52/


I'm fully catless (downpips and 2nd's). I've always wanted to try this out but too scared.
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      07-17-2011, 10:44 PM   #19
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lmaoo. That looks cool!
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