Vibrant Performance Exhaust

[GotZHP]

I always wonder if there isn't some downside or diminishing return of having sharp angles to maintaining similar pipe length vs. getting it close in length similarity but less aggressive angles of the tubing.

Then again, I have no background in gaseous physics or compressible flow

If you really want to see some debate over this, log onto any Subaru forum LOL

[FL116]

So, the headers have been installed. And.... IT SOUNDS AMAZING! Very loud! But oddly, doesn't drone too much when cruising at highway speeds. I have only driven ito maybe 20 minutes total (it's late at night now), but I must say, I am so happy with the results! My girlfriend even asked why I didn't do this mod earlier lol

[bosszhp]

So, the headers have been installed. And.... IT SOUNDS AMAZING! Very loud! But oddly, doesn't drone too much when cruising at highway speeds. I have only driven ito maybe 20 minutes total (it's late at night now), but I must say, I am so happy with the results! My girlfriend even asked why I didn't do this mod earlier lol

Can't wait to hear it in person! So now you can help me install headers on the M when the time comes


Sent from my iPad using Tapatalk

[FL116]

Can't wait to hear it in person! So now you can help me install headers on the M when the time comes


Sent from my iPad using Tapatalk

It was a painful install lol

[FL116]

Some video clips of the exhaust with the ebay headers installed.

[anandoc]

Any of you with the Vibrant exhaust experienced any rattling noise during idle? The temperatures have dipped here to low single digits (38F-42F) in the mornings and when I went to drop by wife off at the subway station, as soon as she opened the door to get out, there was a loud rattling noise coming from the rear end.

Later, when I got to work and put my car to 'P' and got out of the car, the rattle was still there. I put my foot against the exhaust outlet for a quick few seconds and the rattle went away. Foot off the exhaust, and the rattle comes back. Any clues?

[BMWCurves]

Might be bumping against the heat shield somewhere? Is the muffler welded on or bolted on? Maybe a nut is loose somewhere?

I just remember my father's 540i would get random clanking from the front right wheel when temps were around 32-37F. Turned out to be the dust plate was shifted in just the right way due to temps to make it bump against some other part of the suspension. No amount of tightening would fix it. Just ended up living with it.

[anandoc]

Might be bumping against the heat shield somewhere? Is the muffler welded on or bolted on? Maybe a nut is loose somewhere?

I just remember my father's 540i would get random clanking from the front right wheel when temps were around 32-37F. Turned out to be the dust plate was shifted in just the right way due to temps to make it bump against some other part of the suspension. No amount of tightening would fix it. Just ended up living with it.

Thanks! It is welded on. I will try to grab a better view of it later on...I too suspected a heat shield rattle.

[anandoc]

Ok, figured out what was causing the obnoxious rattling sound at idle. Ironically, it seems like a vibration dampener piece had come loose and was resting on the exhaust pipes. Pics:



Closer look:



I yanked it out and will put it back on when the car is on lifts next time. Not sure how this could just come loose on its own

[Dual]

Note failure of black finish 14 months after installation-