hey all. Some people have asked recently what my exhaust sounds like with what I have done.
Here is a link to a vid sound clip that should give an idea.
THis was done while at a stand still. Inside cabin windows closed, Then with camear and mic outside of car. Never went over 3 k RPM's but gives and idea of rev sounds it would make at a stop light or something...
I am gonna try to do another one soon with the car under load at night sometime soon, but thought I would share.

My Exhaust:
Primary cats in place, no secondaries, no resonator.
3" SS pipes from primary cats to a 3" X-pipe, then 3" pipes dual all the way to stock AMG mufflers(not gutted)

Heres the clip....


http://www.vimeo.com/4776156

 

Sounds good. From what I can tell, leaving the stock system in place and removing the secondary cats you get louder and more raspy. Do the resonators as well and it's even more raspy at lower revs.
Interesting to see you rev your car in neutral...I saw your tach go past 3000 rpms. I cannot do that in my BS - even if I floor it the needle just stays right at 3k...also yours revs much more freely than mine in idle - I cannot blip it like that at all.

 

wow to bad you cant get a E55 to sound like that.

 

my revs will stop at 3500 when in park or neutral without moving.

 

 

I hope you guys are doing that in neutral. Don't do it in park.

 

was doing it in both. Was only taping throttle, not flooring it....small revs no biggie....

 

Thanks for the clip, that is helpful.

Maybe we can link some other 63 exhaust clips to this thread so we can have them for comparison.


Thanks for the post

 

Sound good..now that only when car in park...I bet she sounds MAD when in gear...

 

tomorrow I am gonna try to run a dedicated MIC into my trunk area. Or just outside trunk and try to get some up close recordings of the exhaust under load while drving around. Not sure if I will have video or not or the same runs. Might just be an audio recording, unless I can find a long mic for camera. Should have something else to post at one point later tomorrow. But yeah would be nice to heard what some other 63's sound like

 

heres a link to my c63 with no resonators and no 2nd cats.
http://www.youtube.com/watch?v=qk9Oho1OFZo

way to loud, when i do my headers im putting them back on due to losing primery cats.

oh yea the sound before the vid was me hitting something on the floor not my car lol

 

Sounds good! A lot like mine. When i do Long Tubes, hopefully by end of summer for the fall race season I plan to add some HF cats to the ends about where the secondaries were before going to X-pipe.
And yes to keep sound down a little.

 

im going the same way when my header come in. its ganna be loud.

 

Do HFC have a certain cell count? What would be a good number for keeping sound down but still maintaining performance with longtubes?

 

IMO probably a 2 x 200 cell count HFC's would be good enough to accomplish that.