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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 08-31-2013, 07:44 PM   #1
XKR
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Muffler delete w/ catless headers

I really wish I could keep my car like this because the volume was so much more intense in person. My ears rang for a few minutes after a few runs up and down the road lol. If the cops wouldn't get to me first, my neighbors would defiantly will. I'm going to do a muffler mod instead and get rid of all that packing inside and stuff it with some sound insulation and connect a few pipes. Going to post some more pics and vids of the final project



oh and these are status gruppe headers. everything else is stock
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Old 09-01-2013, 12:43 AM   #2
Moosecakes
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Sounds good IMO I love the raspy sound of these motors!
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Old 09-01-2013, 12:55 AM   #3
XKR
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Sounds good IMO I love the raspy sound of these motors!
It's going to kill me when I have to put the muffler back on it lol it's so great. I don't understand why people are always throwing resonators on these cars. I tried this with my old headers on but the sound was pretty awful. Hopefully with my exhaust mod, i'll be able to keep some of that awesome rasp and not get pulled over!

EDIT: I can't also believe how much louder this engine is as compared to the M54 engine or any other car. My sister just got a CLK 430 and got the muffler chopped off and it's pretty quiet compared to the S54 engine. And the CLK has a 4.3 V8. This is also louder than a straight piped E9x m3

Last edited by XKR; 09-01-2013 at 12:59 AM.
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Old 09-01-2013, 12:18 PM   #4
Alroy
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I came to the conclusion that E46 M3's just sound like ****. All I have is an RE Rasp Pipe.
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Old 09-01-2013, 02:04 PM   #5
ImMolton
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Sounds like a race car. Love it.
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Old 09-02-2013, 06:37 PM   #6
caliscrizle
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Re: Muffler delete w/ catless headers

Sounds dope, buy a gruppe M and you'll be close to the same sound

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Old 09-02-2013, 09:43 PM   #7
XKR
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Sounds dope, buy a gruppe M and you'll be close to the same sound

Sent from my SAMSUNG-SGH-I317
trust me, if I had almost 4 grand for a original gruppe m muffler I would get it in a heart beat lol. I know there are tons of replicas on the market but there is nothing like the real thing. I'm in the process of hacking up my OEM muffler and seeing what kid of results I get. I might get the Rouge Engineering X pipe with the EVC for obvious reasons. I hope it doesnt change the tone too much because I don't mind having stock section 1 and 2.

I'll have the finish product posted by the end of the week hopefully, but here's a cold start for now
sorry that it's not in focus, i only had 1% battery left on my phone
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Old 09-02-2013, 09:46 PM   #8
Davconelectric
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Muffler delete w/ catless headers

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Originally Posted by Moosecakes View Post
Sounds good IMO I love the raspy sound of these motors!
It's not the motor that's raspy, it's the rear muffler


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Old 09-02-2013, 09:56 PM   #9
caliscrizle
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Re: Muffler delete w/ catless headers

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Originally Posted by XKR View Post
trust me, if I had almost 4 grand for a original gruppe m muffler I would get it in a heart beat lol. I know there are tons of replicas on the market but there is nothing like the real thing. I'm in the process of hacking up my OEM muffler and seeing what kid of results I get. I might get the Rouge Engineering X pipe with the EVC for obvious reasons. I hope it doesnt change the tone too much because I don't mind having stock section 1 and 2.

I'll have the finish product posted by the end of the week hopefully, but here's a cold start for now
sorry that it's not in focus, i only had 1% battery left on my phone
Damn if only the M division would have tuned for the sound you have now sounds awesome man!

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Old 09-02-2013, 10:11 PM   #10
XKR
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Damn if only the M division would have tuned for the sound you have now sounds awesome man!

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fingers crossed that it will still be awesome with the modded muffler
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Old 09-03-2013, 09:02 PM   #11
revzillia
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Look into exhaust cut outs. Have a muffler shop cut and install Y pipes before muffler , add cut outs and downpipes . Done . It should cost 500 -700 for it . When you get tired of rasp , just turn it off ... When you want to wake up the neighbors ,,,,,, on
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Old 09-03-2013, 09:04 PM   #12
XKR
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Look into exhaust cut outs. Have a muffler shop cut and install Y pipes before muffler , add cut outs and downpipes . Done . It should cost 500 -700 for it . When you get tired of rasp , just turn it off ... When you want to wake up the neighbors ,,,,,, on
yeah, either that or i might get the RE xpipe which has it built in
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Old 09-03-2013, 10:36 PM   #13
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God damn. That sounds awesome. Keep us posted on the muffler.
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Old 09-03-2013, 11:28 PM   #14
XKR
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God damn. That sounds awesome. Keep us posted on the muffler.
I promise I'll get one good video in before I put the muffler back on but I just have this for now lol. My traction control was acting up and the camera on the tripod was way to bouncy.


and here is anther start up vid, my camera died so that's why the first half isnt longer. I kinda regret putting my car in the garage tonight because im pretty sure that start up woke a few of my neighbors up

----------------

I almost got the muffler open but I have to grind it in some areas where some of the welds are.

Last edited by XKR; 09-03-2013 at 11:30 PM.
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Old 09-03-2013, 11:41 PM   #15
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Just FYI, gutting the OE muffler and welding pipes in place of a few open baffles only makes the muffler a bit louder and more rasp then stock. There's already been pics and videos posted somewhere on here or M3F regarding this for reference.
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Old 09-03-2013, 11:45 PM   #16
XKR
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Just FYI, gutting the OE muffler and welding pipes in place of a few open baffles only makes the muffler a bit louder and more rasp then stock. There's already been pics and videos posted somewhere on here or M3F regarding this for reference.
Yes I agree but one user stuffed chamber one and two with this sound insulation and there's not that much rasp.

I'm trying to get similar results but with my own little twist on it.

Last edited by XKR; 09-03-2013 at 11:46 PM.
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Old 09-03-2013, 11:48 PM   #17
morningisbad
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Re: Muffler delete w/ catless headers

Quote:
Originally Posted by XKR View Post
trust me, if I had almost 4 grand for a original gruppe m muffler I would get it in a heart beat lol. I know there are tons of replicas on the market but there is nothing like the real thing. I'm in the process of hacking up my OEM muffler and seeing what kid of results I get. I might get the Rouge Engineering X pipe with the EVC for obvious reasons. I hope it doesnt change the tone too much because I don't mind having stock section 1 and 2.

I'll have the finish product posted by the end of the week hopefully, but here's a cold start for now
sorry that it's not in focus, i only had 1% battery left on my phone
Wow...that just sounds fvcking evil! I love it

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Old 09-04-2013, 12:30 AM   #18
BWOODM3
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Muffler delete w/ catless headers

Sounds great man


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Old 09-04-2013, 07:53 AM   #19
helmutm3
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If IM understanding your plan correctly I have to ask why
go through the trouble of gutting the muffler insteAd of just running a straight pipe in place of it.
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Old 09-04-2013, 07:26 PM   #20
XKR
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If IM understanding your plan correctly I have to ask why
go through the trouble of gutting the muffler insteAd of just running a straight pipe in place of it.
I'm not gutting it 100%, im packing chambers 1 and 2 with sound insulation so it wont be insanely loud. it will still be pretty loud but not as loud as straight pipes. It's still probably going to be above the legal limit but that much above with just straight pipes. My car idles way over the legal limit so you could imagine how loud it would be in the higher revs.
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