Exhaust mod
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Joined: Oct 2007
Posts: 113
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From: Estonia
My Ride: 2005 545iA
If someone is interested of real world performance change i have some graphs.
I had rear muffler changed on an 545iA to 3" straight through sport muffler, the results:
Before
After
The graphs begin at 2krpm, because of the automatic transmission or something, but still the numbers are not important, the change between both is.
For information the temperature was different arount 15-20 degrees celsius, thats where the hp loss was from, but check the smoothness of the curves and torque on 2500RPM:-)
--- Why the hell cant i post jpg-s here, the pictures by them selves are not good to look, they need to be seen together :-(
I had rear muffler changed on an 545iA to 3" straight through sport muffler, the results:
Before
After
The graphs begin at 2krpm, because of the automatic transmission or something, but still the numbers are not important, the change between both is.
For information the temperature was different arount 15-20 degrees celsius, thats where the hp loss was from, but check the smoothness of the curves and torque on 2500RPM:-)
--- Why the hell cant i post jpg-s here, the pictures by them selves are not good to look, they need to be seen together :-(
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Joined: Dec 2008
Posts: 4,656
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make sure they are not dynamic images.
upload them to your gallery on e60.net, once they are there, right click and "copy link location" or whatever your browser says. you can also right click "properties" and copy the URL. it shouldnt be dynamic there.
upload them to your gallery on e60.net, once they are there, right click and "copy link location" or whatever your browser says. you can also right click "properties" and copy the URL. it shouldnt be dynamic there.
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Joined: Aug 2008
Posts: 9,986
Likes: 1
From: Zoo York
My Ride: Alpine White 2006 530Xi (SLD)
Originally Posted by Alfonze' post='944787' date='Jul 17 2009, 05:28 AM
...For information the temperature was different arount 15-20 degrees celsius...
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