Reply With Quoteyou should hear it in person sometime! *rolleyes*
Originally Posted by Bimmer Nut Ed
Major Contributor
Anyone replace the center resonator with straight pipes to rear muff
Just thinking out loud. I have to replace a friends 535 exhaust. I'm thinking about maybe saving her some money by skipping the center resonator and going straight pipes from the cats to the rear muffler. Has anyone tried this. Does it sound terrible? Are there any negative effects? Are there any positive effects? What the heck does a "resonator" really do?
20 questions Ed!
Just trying to get my friends 535 ready for the meet this weekend. It used to be my 535.
A Bimmer Nut for sure: '04 530im (current daily driver), '97 m3, '98 323is, '99 Z3, '01 740iL, '06 330cicm zhp, '02 R1150R, '69 r60, Owner/Operator of www.Bimmer.info and www.BimmerNut.com
And I still maintain: '90 535im (sold to daughters best friend, one of my favorite bimmers), '92 525im (daughters other best friend now drives this one).
Grand Master
Um, Ed.....my 535...eisenmann rear + straight pipes...
you should hear it in person sometime! *rolleyes*
Major Contributor
Dude, your car sounds great. I have heard it *reverse roll eyes*
I did not know your setup had no resonator Scott. kewl
But I am talking about straight pipes to a stock rear muffler, what would you think that would be like.
A Bimmer Nut for sure: '04 530im (current daily driver), '97 m3, '98 323is, '99 Z3, '01 740iL, '06 330cicm zhp, '02 R1150R, '69 r60, Owner/Operator of www.Bimmer.info and www.BimmerNut.com
And I still maintain: '90 535im (sold to daughters best friend, one of my favorite bimmers), '92 525im (daughters other best friend now drives this one).
Big, Big Time Poster
Wouldn't that increase both sound level and pitch? It would sound a bit tinny I think - it is a popular thing to do here in NZ with a rotary engine fitted POS. Which reminds me to add to my list of inventions I wish I could uninvent:
The Nuke
Chemical and biological weapons
Telemarketing
The Wankel motor (may NSU rest in peace)
Freude am Fahren - Damn straight!
4 Grand Master
She'll hate you for it if you do, Ed. The car will resonate (reverberate, rattle, shake, boom) inside, but it will impress shoppers on the street so much they will drop their bags... at least as much as a large hole in the muffler can.
Whatever you do leave the resonator on any M30 or S38 powered e34. Look for extra noise from the muffler, that way its behind you- not under you.Nick
Join the Aussie 540i LE yahoo forum
08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!
Green Beret Special Ops
pipes sealed are pipes, its where it lets out that the noise transpires from.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Gas may exit at the back, but resonators help damp vibrations and harmonics within the exhaust system, which are also a significant source of noise.
Central heating systems are sealed pipes, however, you can still get a lot of noise from vibration within the system's pipes at times.
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