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      11-19-2012, 08:53 AM   #1
Yoro35i
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E92 335I exhuast system help

Hi guys

Can anyone who has done any exhaust work remember if our systems are

Downpipes with cats --> Secondary Cats ---> central muffler---> rear Muffler ?

I've been thinking of looking to get some straight through pipe from second cats onwards but couldn't find any information regarding any drones or if the coupe has central muffler, some says only the saloon version has it and while looking at realoem i've found that my car has central muffler??

I have aftermarket muffler which sounds great from outside but i cant tell any difference from stock when i'm inside the car..only slightly deeper roar.


Thanks
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      11-19-2012, 09:49 AM   #2
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I'm sure from memory there is no central muffler.

I have some supersprint decat straiget through centre pipes if you fancy them...
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      11-19-2012, 11:05 AM   #3
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to be honest i don't want to touch the cats hence i'm asking if there was any central muffler.

Does it make a big difference when you had it on?

and what price are you looking at?
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      11-19-2012, 11:12 AM   #4
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this should help:
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      11-19-2012, 11:18 AM   #5
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Muffler, are you American?
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      11-19-2012, 12:57 PM   #6
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Quote:
Originally Posted by Yoro35i
to be honest i don't want to touch the cats hence i'm asking if there was any central muffler.

Does it make a big difference when you had it on?

and what price are you looking at?
after 75 plus postage.

deepend the note quite nicely, not too loud, no noticeable drone, but that's a personal judgement. ain't got any sound clips sadly
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      11-19-2012, 04:05 PM   #7
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yes yoro, you are right.

e92/3 are a bit different to the e90/1, but nothing major.
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      11-19-2012, 06:59 PM   #8
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Quote:
Originally Posted by sixpot View Post
Muffler, are you American?
Just wrote what realoem says, don;t want any confusion thats all.
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      11-19-2012, 07:01 PM   #9
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Quote:
Originally Posted by phil200tdi View Post
this should help:
Phil,

that thing that looks like an X thing is the central silencer??

did you change the whole system and running no cats??
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      11-19-2012, 07:02 PM   #10
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Quote:
Originally Posted by smoked View Post
after 75 plus postage.

deepend the note quite nicely, not too loud, no noticeable drone, but that's a personal judgement. ain't got any sound clips sadly
Did you took it off bcuz of MOT?

stop teasing me....
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      11-20-2012, 02:24 AM   #11
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Quote:
Originally Posted by Yoro35i
Quote:
Originally Posted by smoked View Post
after 75 plus postage.

deepend the note quite nicely, not too loud, no noticeable drone, but that's a personal judgement. ain't got any sound clips sadly
Did you took it off bcuz of MOT?

stop teasing me....
haha it came off coz the missus didn't like it will the cattless dps too. it was fine for me
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      11-20-2012, 04:30 AM   #12
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Quote:
Originally Posted by Yoro35i View Post
Phil,

that thing that looks like an X thing is the central silencer??

did you change the whole system and running no cats??

Its a google image.

I have an E90 so mine is slightly different - I have Catless DPs and stock from there onwards.

My assumption is that the X thing is to mix the exhaust gases in the mid pipes, its not big enough to be a muffler. The link between the two rear boxes does the same and apparently helps to reduce drone.

I would add a pair of resonators to the catless mid pipes smoked is selling and away you go!
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      11-20-2012, 12:43 PM   #13
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Quote:
Originally Posted by phil200tdi View Post
Its a google image.

I have an E90 so mine is slightly different - I have Catless DPs and stock from there onwards.

My assumption is that the X thing is to mix the exhaust gases in the mid pipes, its not big enough to be a muffler. The link between the two rear boxes does the same and apparently helps to reduce drone.

I would add a pair of resonators to the catless mid pipes smoked is selling and away you go!
Thanks..still weighting up my options...Mot after xmas so might just leave it till after =]
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      11-20-2012, 01:35 PM   #14
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Another google image

Yoro,

Heres another photo from google.When I swapped out the oem for PE system on e91, it looked the same this, the midpipe resonator is at the top of the photo, oem fit for N54 E90/1.

Phils google picture is of a e92/3 system with x pipe in place of the above resonator.

Hope this helps.

Dave
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      11-20-2012, 04:41 PM   #15
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thanks pave, i think im going to get the car up then have a look!
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      11-21-2012, 03:35 AM   #16
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Dave, so you've got a PE on your E91?

The extra mid section you have to buy for the E90/1, is that the X pipe which as standard on the E92/3?

That's seems why the PE on th E92/3 is much cheaper because you don't need to buy the new mid section..
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      11-21-2012, 06:38 PM   #17
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E91 PE midpipe

Yes, with e90/1 you get a replacement mid pipe with x pipe in addition to the rear boxes. Hence the higher price as coupe/conv already have x- mid pipe.



Quote:
Originally Posted by doughboy View Post
Dave, so you've got a PE on your E91?

The extra mid section you have to buy for the E90/1, is that the X pipe which as standard on the E92/3?

That's seems why the PE on th E92/3 is much cheaper because you don't need to buy the new mid section..
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      11-22-2012, 09:34 AM   #18
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Bingo
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