fusionchicken

Boost7

Magnaflow are good mufflers, but somehow I don't like their sound. To me it's on the louder hollow exhaust tone. Something you'll hear on a muscle car, so if you like that exhaust tone then go for it.

Also I remember one of the local guy with a 530 here in the BayArea did his setup with Magnaflow and it drone like crazy, regardless of what resonator he tried out. He ended up with a borla center muffler to fix the problem.


- post #13 - https://5series.net/forums/e60-parts...2/#post1536050

chea

I have the ar dp with a muffler delete with 2 vibrent resonators welded to the tips sounds pretty good. I am going to cut off the secondary cats off soon since they seem to be going bad and develop a rattle

radarcontact

FINALLY getting this done today! I’m excited and a little nervous... more excited!
I HAVE TO REMEMBER to get before and after videos, hope I don’t forget. I will post ASAP.

Here’s the plan, to recap:
- get rid of secondary “caterpillars” and replace with same size straight pipe
- replace the flattened oem sections (where it goes up and over cross-brace/bracket) with same sized straight pipe
- (leave OEM center muffler/resonator)
- cut off both mufflers and replace with a single Vibrant 1142 3" Ultra Quiet Resonator ( )
And
- Twin, double-walled, slant-cut exhaust tip

// Radar //

radarcontact

Here’s a vid of the OEM system. I’ll do another of the new one and post as well, ASAP.

You can check it out here:

radarcontact

Old look with oem tip(s):






Oem tip

radarcontact

Update:
Got all the work done today and it looks fantastic! It sounds really good but it might be a little loud for my taste… Might want to put another resonator somewhere back farther to soften it up a little bit more. Not sure yet, maybe I just need to get used to it.

I have a problem though.
On my way home it was smoking like crazy. I’m mean, so much smoke that I pulled over to see if my bumper was on fire! LOL. Like embarrassing-for-a-BMW amount of smoke.

I posted it up on N54Tech.com asking if now it’s just running way too rich. I do have a little bit of “soot” on the inside of the muffler tips already and I only drove about an hour and 15 minutes home. Not sure what’s going on. A little worried to be honest.

I got a reply from someone saying that he thinks it’s because I got rid of the secondary cats, but it seems like way too much smoke for that. I’m sure there’s some people here who posted above ^^^ that deleted those cats as well, and can attest to whether or not it creates that much smoke - please chime in!
The guy also said he would bet that I have leaky turbos. Last time I logged a run I was running at about 18 psi max, so that seems unlikely, but I really don’t know much about turbo cars… This is my first one and I’m 52 years old.

If anyone has anything, throw it out there, I’m all ears.

Thanks and I’ll post up a video of the exhaust system from underneath and another one of it running once I get my son over to the house later this week.

// Radar //

radarcontact

Holding off on posting anything till I get this smoking issue fixed.

My advice to anyone looking at modding their exhaust...
DO NOT remove the secondary c-a-t-s unless you are prepared to deal with the smoking issue, should you end up with one.

// Radar //

P.s.
I think I’m also going to be looking into a Sound reducer (muffler) to install inline on my system. It’s a little too loud for a classy sedan like this. It’d be more suited to a 3 series and a 25- yr old driver vs a 5 series with a 52 yr old driver. Lol (no offense to 3 series, I have one too and love it equally)

haamburglar

Awwww man I truly feel your pain, I am going through the current phase of a smoking tail pipe. I wah-luurd out my cats a few weeks back, after running for what felt like two days I noticed the smoking.

I kinda just figured it was my turbos because I just hit 90k and when I looked under with a light I can see some oil buildup on the outside of the front turbo. I had just ordered a BMS catch can and a Rob Beck PCV valve, I am going to replace the valve cover and/or gasket this week. If that doesnt help than I will be replacing some turbos

As for the exhaust portion, I have spent many hours looking at other peoples set ups and I am going to shoot for 2.5 the whole way, with maybe a X-pipe or some sorta dual tip resonator. If I can get a new rear bumper in time than I will pho sho be doing quad tips, or maybe two chunkys!

radarcontact

Well, the way I understand it, just because the turbos make things smoke doesn’t mean they are going bad, or need replacing. That might not be true, I know very little about turbos, this is my first.

I think a big 3” high flow c-a-t and a nice high flow muffler (Flowmaster DBX maybe) will make me happy. Too loud and too “young” a sound for,this old guy! But damn, when I hit the pedal... WOW! It is scary mean sounding! Want to keep some of THAT!