New exhaust is here

[Mblaster]

Got an Eisenmann Race 83mm in my hot hands. Going to install high flow cats and remove the resonator. Should be wicked:redspot :alright . Pics to follow

[iforged]

Sounds like a great plan. Post some pics up when your are finished and maybe a sound clip. That setup is going to sound mean

[MGregski]

Start kissing up to the neighbors now:D

[Mblaster]

Do ya think I should keep the resonator because its going to be too loud?

[525iT_Feen]

Yes, it's going to be VERY loud. I would suggest you leave the resonator in just because the loudness of it starts to get SOOO frustrating after a while.

Just my .02

GET PICS UP!!!

[Mblaster]

Well The install isn't going to happen until nxt tues , I have the option of running all new double 2 inch from the header flange back to high flow cats back to the muffler and being able to save the whole factory exhaust . Or I have to cut up the OEM to salvage the resonator and add it to the new stuff. Then the old exhaust would be in pieces.

[shragon]

cool, keep us updated.

[540SportinVA]

I just installed a SuperSprint x-pipe and a pair of Kellener exhaust cans on my M5. This system was installed from the cats back, taking out the resonators. The x-pipe is basically just pipe filler material, lol...

I was told that it would be too loud (would scare dogs, old people and make babies cry). I could not be happier with the sound. Nice rumble down low, sings like a ferrari at the top.

My vote is to take out the resonators.

Unlike children, 400 bhp should be seen and HEARD!!!

good luck

al

[///MEric]

get ride of the resonators. Go and show honda boys what a real exshaust sounds like

[Mblaster]

I haven't made the final decesion yet, another option is to just go cat back and remove the resonator as the factory cats are huge and should quiet the beast somewhat. That would also save money. I'm thinking go high flow cats and salvage the resonator(to keep the peace). But I'm open minded too.

[m_specs]

i think you should keep the cats and get rid of the resonators.. thats what im doing.. my friend has a e39 540, and he took out his cats and replaced his resonator w/ a really small one the size of a magna flow.. he has the supersprint exhaust, and i think its quiet. i gunned it up and down the street. it was like a low toned hum or something.. a little too quiet if you ask me.

im not at all worried about taking out the resonator for my custom exhaust setup. just my thoughts.

[Mblaster]

which do you think will give more hp gain- doing high flow / resonator or cat back /no resonator. PS my car has 144K on the clock so the cats may not last forever.

[Mblaster]

which do you think will give more hp gain- doing high flow / resonator or cat back /no resonator. PS my car has 144K on the clock so the fact. cats may not last forever.

[Mblaster]

F-ing computer

[m_specs]

personally.. i would not mess w/ the cats.. however the resonator is a different story.. heheh get rid of that sh*t.

[Brandon J]

Originally posted by 540SportinVA
I just installed a SuperSprint x-pipe and a pair of Kellener exhaust cans on my M5. This system was installed from the cats back, taking out the resonators. The x-pipe is basically just pipe filler material, lol...

I was told that it would be too loud (would scare dogs, old people and make babies cry). I could not be happier with the sound. Nice rumble down low, sings like a ferrari at the top.

My vote is to take out the resonators.

Unlike children, 400 bhp should be seen and HEARD!!!

good luck

al

Well, the supersprint exhaust is much much quieter than the Eisenmann exhaust. I have heard both a Dinan S2 with x pipe, race cats, and Supersprint mufflers and the e34 M5 with race cats, no resonator and Eisenmann.

The biggest difference is that there is much much more noise inside the cabin of the e34. Even in an e34 535i ScottH here in Chicago has an eisenmann High performance with straight pipes from the cats and it also is very very loud and droning inside the cabin. He is looking into race resonators.

I have heard many combinations and I say to keep the resonator. Forget the neighbors, what about yourself inside the car...

Aren't the tubes 2.25 or 2.5in from the cat back? If not, I would suggest to use them anyways as it isn't that much more to go to the larger size.

FYI: if you go to Eisenhaus' website and start searching for e34 exhausts, the M5 is Kris' over here in Chicago.

[Mblaster]

Kris' car didn't get real loud and boomy in the cab till he went with high flow cats. Thats why he needs a resonator to make it liveable. Ergo the choices are High flow with the resonator or cat back w/o resonator. I think high flow with no resonator would be just too loud to live with.

[540SportinVA]

The only time you get droning in the cab is in a high gear at low rpms and you add a bunch of throttle. As soon as the rpm's catch up, droning goes away. Also, a quick downshift (or two) and the hum goes away very quickly, plus it adds to the driving enjoyment. I would'nt change a thing, but hey, that's just me.

And I don't have supersprint exhaust, have kellener cans which IMHO have a far superior sound to supersprint.

al

[Mblaster]

The main question is to leave the factory cats and x- pipe w\O2sensor or install the high flow cats with a new x-pipe. There is a huge difference between the two. The factory stuff is massive with lots of shielding to make things quieter. The high flow cats are small a new x-pipe won't have the shielding. Thats why Kris' car is so much louder when he changed out the cats. He even says its too loud (cops). The car was liveable before the high flow cats.

[Brandon J]

Originally posted by Mblaster
Kris' car didn't get real loud and boomy in the cab till he went with high flow cats. Thats why he needs a resonator to make it liveable. Ergo the choices are High flow with the resonator or cat back w/o resonator. I think high flow with no resonator would be just too loud to live with.

ScottH's car has the stock cats and it is still very loud inside. Mileage is about 135k and passes emmissions. However, it sounds awesome outside. Sometimes it sounds louder inside than out.

Kris' car failed emmissions leading that the cats were bad (Mileage approaching 200k). This could contribute to the fact that it was quieter as the clogged or broken (inside) cats muffled/muted the sound. He had a bad coil for some time so if the car ran rich, then the extra fuel could contribute to the cat failure.

If you really want to go with aftermarket cats, keep the resonators. If you want to keep the stock cats, then maybe try w/o the resonators.

I have a Dinan exhaust in my e39 and love it as I don't hear it inside the car that much. It is lunder than the Supersprint and is nice and loud at WOT (however nothing like an e39 M5 with x-pipes and exhaust, that is just sick). The e39 is much more sound proofed than the e34 cars. This can be good as it allows its owners to use a lounder set-up w/o making it too unbearable inside.

I agree that cats w/o resonator might just be too loud to live with. With whatever decision you choose, hope it works out for ya.

[Brandon J]

Please post with results with what ever combo you choose. I will be looking for an exhaust this year as mine is rusted.

I too am looking at combos. I am just glad that people over here have already done it and that I can learn from their experiences.


Thanx

[Mblaster]

I'll for sure let you guys know how it works out and I'm going to shoot some pics of the job for you to see. Hopefully I only have to do this once. :cool: I 'm going to get some more input from my exhaust guy, he does a lot of hypo stuff and has a lot of experience. I want that S38 to sing :clap:

[theDogger]

What about the Remus? I'm still looking for the right combo. SS is to quited. How does the Remus or BB Tri flow compair to the Eisenmann Race exhaust. The Tri flow is straight back no res. Remus makes there own high flow res.. I was thinking myself Remus w/o the OEM resonator back from the cats with a H-pipe. Not too worried about cabin noise I have DynaMatted the entire interior.....But before I buy I still need to here some exhausts on an e34 or e39. Can't seem to find any around Sac. Here. Brandon..I'm in the process of relocating to Chicago. would like to get together and hear your set up and others....


theDogger

[Mblaster]

I checked into remus but they don't make anything for our car, you might be able to get one of their ti mufflers but they weren't too much help. BB makes a nice cat back but I just decided to go with the german stuff. BB is less money though. As you know everything on these cars is some kind of a compromise when It comes to mods. PS sorry I dropped the ball on the ACS caps been so Damn busy then I got this exhaust thing rolling...well you know, Later...

[theDogger]

The Remus exhaust are still avaib. for the e34. I inow of 2 places that carry the exhaust. BavAuto and WheelPower. Rear exhaust runs 500.00.

NP on the wheel caps.


theDogger

[540Greg]

I really like the sound. My car gets tons of compliments on the exhaust note. At idle it's very quiet. When I put my foot into it the exhaust has a nice growl. It really sounds like a V8. Rob has heard my car maybe he can comment. I'll try a link to a video clip. This clip is when it was new and it had a little rasp. There is no rasp now.


Exhaust Movie (http://members.roadfly.org/Session/5728-zvKFNuEuOC0VA4A1gb3L/WebFile/Movie.WMV)

Greg S.

[Mblaster]

540 greg, theres a big difference in our 2 cars, but that V8 must sound nice. Hey Gopp Dogg, when I looked through the Remus catalogue they made nothing for E34 M5s, though they made stuff for the lesser E34's. I was going to see if they could do something custom with the ti race muffler but I could get no action. That was several months ago and I kind of gave up on Remus.

[Mblaster]

Hey GoppDogg,
PS My mechanic is also a Remus dealer, and they were talking to their sales rep at Remus's HQ here in LA but it was still a no go for me. Maybe I just had bad luck with them.

[Mblaster]

the Dogger...GoppDogg,
yea I'm confused and tired and trying to think at the same time, sorry. Late.

[540Greg]

You're right our cars are way different. I had 535 that was built M5 fast with the resonator removed and it wasn't too loud. I know it was M5 fast because the mechanic that built the engine had an M5 and we raced. I beat him to 100 then he passed me. He was happy he built such a strong engine and pissed I beat him. For my current car I had the res removed and if I get tired of the extra sound I'll have a racing res installed. There are a few high flow and good quality resonators on the market. I still browse the classifieds considering getting into an e34 M5. They are such sweet cars.

Greg S.

[Mblaster]

540 Greg, Any tips on good quality high performance resonators? And Yea there's few cars that can match the sound of an s38 on the revs.

[theDogger]

Greg..

Can you fix the movie link???????


thanks

theDogger

[shragon]

yea, greg's car sounds good.

greg, never knew you had a 535i before. i remember the e34 540i and of course the current e39 540i.

[AutoCouture]

Originally posted by 540Greg
I really like the sound. My car gets tons of compliments on the exhaust note. At idle it's very quiet. When I put my foot into it the exhaust has a nice growl. It really sounds like a V8. Rob has heard my car maybe he can comment. I'll try a link to a video clip. This clip is when it was new and it had a little rasp. There is no rasp now.


Exhaust Movie (http://members.roadfly.org/Session/5728-zvKFNuEuOC0VA4A1gb3L/WebFile/Movie.WMV)

Greg S.

what magnaflow muffler are you running?

[Mblaster]

Well tuesday is the big day, the Beast is going under the knife. :atom