E34 Center Muffler

[specialguess]

I am in the process of doing my exhaust system on my car and I looking for some info/comments/opinions.

Has anyone taken off/removed the Center Muffler?

What are the pro's and con's?

Thanks

[BigKriss]

pros = louder

cons = louder
:)

[Dave M]

pros = louder

cons = louder
:)

Well said :D

[specialguess]

has anyone tried different center mufflers other than factory?

[bmwrp8]

I am in the process of doing my exhaust system on my car and I looking for some info/comments/opinions.

Has anyone taken off/removed the Center Muffler?

What are the pro's and con's?

Thanks

dunno about the center muffler but i did remove my cat. so far there is only a little gain and has the same sound as before but now i have that "cataliyst" warning in the obc:(

[Dave M]

dunno about the center muffler but i did remove my cat. so far there is only a little gain and has the same sound as before but now i have that "cataliyst" warning in the obc:(

I don't have a cat OR the catalyst warning. Never heard of such a thing.

Dave

[tim eh?]

i replaced the center resonator with an ansa part last year.

can't compare the noise... the problem was in the rear muffler but i replaced everything from the cat back. it's quiet tho.

didn't do it myself but it would appear it's not a perfect fit... the rubber hangers fell apart 4 months later and with a new pair on it sits too close to the floor and vibrates against the underside when i floor it.

[bmwrp8]

I don't have a cat OR the catalyst warning. Never heard of such a thing.

Dave
honestly it's driving me nuts! whenever i start the car BING "catalyst"

[genphreak]

The resonator is a specialised part. Retrofitting is risky. Removal is very noisy. My experince in attempting this stupidity leads me to say leave it as is, (which is pretty damned good anyhow)..

[nirvana19]

honestly it's driving me nuts! whenever i start the car BING "catalyst"

How does it know the catalyst is missing? I don't recall any sort of electrical connections to the cat or exhaust except for the O2 sensor, and even if the ECU somehow detected the missing cat I didn't think that would send any messages to the OBC.

[bmwrp8]

How does it know the catalyst is missing? I don't recall any sort of electrical connections to the cat or exhaust except for the O2 sensor, and even if the ECU somehow detected the missing cat I didn't think that would send any messages to the OBC.

after the cat there is a o2 sensor. my car came from japan i dunno if that helps:D

[bmwrp8]

after the cat there is a o2 sensor. my car came from japan i dunno if that helps:D

here's a pic. Sorry for the low quality.camera phone:)