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Rear Muffler Delete

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TomMan7531
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Location: Southampton, Hampshire, UK

Rear Muffler Delete

Post by TomMan7531 » Mon May 21, 2018 9:27 pm

Hi...think this is right section :)

Has anyone removed the attached part from the exhaust on a 635csi, part 18121176338, does it sound nice/too noisy???

P.S Might have one coming up for sale in the UK soon if someone wants it :D
Capture1.PNG
Capture1.PNG (90 KiB) Viewed 1176 times
1987 BMW 635CSI Auto, Royal Blue, Cream interior, daily rust finds....

GRNSHRK
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Re: Rear Muffler Delete

Post by GRNSHRK » Mon May 21, 2018 10:04 pm

TomMan, board moderator here, gonna move you to the mechanical section :-k

The workshop is really for setting up your workspace, picking out lifts and compressors, that sorta thing \:D/

BTW, I personally would not recommend removing either the rear muffler or center resonator, again speaking personally [-(

What are you trying to "gain" anyway :-?
:mrgreen:
Bobbo
1980 633 CSi
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2011 F10 528i
2005 E46 330 Ci ZHP Cabrio
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tschultz
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Re: Rear Muffler Delete

Post by tschultz » Tue May 22, 2018 1:17 am

I have an E12 euro car without cat and currently no muffler. It is too loud and the car doesn't have the same torque as before due to no back pressure via the exhaust system.

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TomMan7531
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Re: Rear Muffler Delete

Post by TomMan7531 » Tue May 22, 2018 1:59 pm

Okay thanks guys, didnt think of loss of pressure. As of what I'm after I suppose a little more growl from it, I find the standard system doesn't do a lot for noise.

I mean have you ever taken the whole system off, sounds like a chopper :P 8)

Other suggestions for more growl?
1987 BMW 635CSI Auto, Royal Blue, Cream interior, daily rust finds....

LarryM
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Re: Rear Muffler Delete

Post by LarryM » Tue May 22, 2018 11:36 pm

TomMan7531 wrote:
Tue May 22, 2018 1:59 pm
Other suggestions for more growl?
Supersprint. But it'll cost you; lots more expensive than taking parts off your car. :D
1985 635CSi
1987 535is
1965 Impala SS

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wattsmonkey
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Re: Rear Muffler Delete

Post by wattsmonkey » Sun May 27, 2018 1:24 pm

Very happy with Fritz system.

Lots of growl. In fact, more like a howling banshee.
"Most of it necessary; all of it enjoyable[!]" LJKS
'86 M635CSi #367 Bring the Noise.
'84 635CSi, dogleg fun

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Jono B good
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Re: Rear Muffler Delete

Post by Jono B good » Sun Aug 05, 2018 5:44 pm

I had a Borla on my old 83 e28 it sounded awesome! I just checked website I couldn't find any for our 6er's though.
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GripGreg
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Re: Rear Muffler Delete

Post by GripGreg » Tue Sep 25, 2018 9:26 pm

TomMan
For some reason I just noticed your post about a muffler system! Actually, I had no computer till 2 months ago!
I fail to understand spending $700 to $1200 bucks for a system. I took my Buster, who is a Euro E12, to a reputable muffler shop; got under Buster & guided the mechanic while installing a race style 2" system by asking him to put the forward pipe inside the rearward pipe. Starting at the Calif. Cat. & deleting the middle resonator, going out the rear through a 6" muffler.
He now has a very deep, throaty growl; just what I wanted for $300 bucks! =D>
I posted this a few years ago but, I don't know how long the moderators keep this info.
Hope this helps.
Hit the apex
in Long Beach, Cal
Buster/'82Euro6 Build Date 9/81
Rosallina/'80 528i Build Date 4/80

bpoliakoff
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Re: Rear Muffler Delete

Post by bpoliakoff » Wed Sep 26, 2018 12:27 am

Greg, where in the world have you been hiding? It seems like years since you have shown up!!
81 Euro 635 M90 with motronic. Currently under a complete nut and bolt restoration. Pictures at
flickr.com/photos/bertsphotos.

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hornhospital
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Re: Rear Muffler Delete

Post by hornhospital » Wed Sep 26, 2018 12:37 am

Wow, Greg, good to have you back!
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"

EdwasRed
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Re: Rear Muffler Delete

Post by EdwasRed » Wed Sep 26, 2018 3:01 am

I recently replaced my exhaust and use only the rear muffler. I like the sound!

https://photos.app.goo.gl/LvaCHZdFCNfmZyFM7
1985 635CSi M Euro M88

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jps635
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Re: Rear Muffler Delete

Post by jps635 » Wed Sep 26, 2018 9:03 am

+1 on the fritz system but note the rear box hangs down a bit like a ball bag. (I chopped mine down). I doubt would disappoint

Prior to this I ran a home made system consisting of a couple short resonators running into a single 2 into 1 central edelbrock, back to 2 pipes all the way back. This sounded the business around town (set off car alarms) but way too much drone on a trip.

On the other hand, with the help of the right cam you could sound like this https://www.youtube.com/watch?v=0BpR12ngmyA
'85 635csi JPS (RA2-66)

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sansouci
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Re: Rear Muffler Delete

Post by sansouci » Wed Sep 26, 2018 6:42 pm

Welcome back Greg!
Sansouci
84 E24 633Csi Auto, Bronzit/PearlBeige 6997510
93 E32 740il M60 Auto, Alpenweis/Ultramarine
60 528i M30 5-speed Green/Beige (crushed)
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GripGreg
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Re: Rear Muffler Delete

Post by GripGreg » Thu Nov 01, 2018 7:00 am

AAWWW! You guys are too much! Thanx for the welcoming committee! =D> \:D/
Here's my story:
I stupidly let someone into my computer using 123 something or other & they wanted to charge me $300 for a years worth of protection! NOPE, not me! Sooo, long story short, they locked me out of my computer! On my Social Security and retiree money (which I didn't plan well for), I had to wait because other things tended to get in the way!
In the meantime I didn't know home HP computers became so cheap! I was thinkin' over a grand but, nooo, only $500! At least at Frye's Electronics! I depended on other people a little too much to get my old unit rebuilt, which killed alotta time too.
Guess what, the very same jerks tried it again to no avail!! I use Norton. Take heed!!

While we're here, Does any one of you know about the guy recently designing & selling E24 printed shirts? I sorta reserved 2 XXL's & want to keep in touch. I need a way to communicate with him. He posted here somewhere. He even asked me if I still wanted my shirts, but, I don't remember who he is! #-o
Hit the apex
in Long Beach, Cal
Buster/'82Euro6 Build Date 9/81
Rosallina/'80 528i Build Date 4/80

GRNSHRK
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Re: Rear Muffler Delete

Post by GRNSHRK » Thu Nov 01, 2018 3:21 pm

Greg, that guy bailed out on the T-shirt offer, as he only wanted to deal in cold hard cash, weird :roll:

In fact, I haven't seen him on the board at all :shock:

Anyhoo, welcome back, sounds like you went through quite some issues [-X
:mrgreen:
Bobbo
1980 633 CSi
Cypress Green/Pearl Beige
2011 F10 528i
2005 E46 330 Ci ZHP Cabrio
Image

You can never have too many BMW's

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