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Old 08-10-2012, 09:19 PM   #1
sthomas
BMWCC 4928, BMWCCA 349578
 
Join Date: Oct 2003
Location: London, Ontario
Posts: 593
New exhaust installed

Well, I bit the bullet and upgraded the exhaust on my 2002 M-Technic 540 stick.

Started by cutting the muffler off. Took it for a spin and it sounded good. Almost left it that way - with just a straight pipe from the resonator.

Then, we removed the resonator. Now that really woke things up. It was a mix of low rumble and higher pitched rasp (not as bad as the e46 M3 though). At this point I seriously considered putting in a resonator delete pipe and re-installing the stock muffler.

Finally decided to put in a resonator delete pipe and the Magnaflow 14834 muffler.

I am very happy with the decision. It's definitely not a sleeper anymore. Below 1800 rpm it can be a little loud when you are on the gas - not in a bad way. But, once you get to cruising speed the sound becomes a mellow rumble. Basically it takes away the rasp and leaves the low rumble behind. Zero drone. Does not get in the way of tunes when cruising and not embarrassing around town either.

What a great upgrade. $150 for the muffler and $200 for the installation. I had this done at Mufflerman in Strathroy and I would HIGHLY recommend them.
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Old 08-15-2012, 02:45 PM   #2
shugalou
2nd Gear Member
 
Join Date: Oct 2009
Location: Durham
Posts: 52
Do you think you gained any power from the exhaust? I have been thinking about this option but I would have to change the rear bumper and that drives the price up.

Youtube if you can - would love to hear it.
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Old 08-16-2012, 01:51 PM   #3
sthomas
BMWCC 4928, BMWCCA 349578
 
Join Date: Oct 2003
Location: London, Ontario
Posts: 593
I doubt there is much power gained. It's lighter - which would help.

Here is Muffler removed:
http://www.youtube.com/watch?v=7rTVnT_fPXo

Here is Muffler and Resonator removed:
http://www.youtube.com/watch?v=LaS_FhM7Ags

With Magnaflow 14834 - no resonator:
http://www.youtube.com/watch?v=MN6ZmfY6qe0
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Old 08-17-2012, 08:45 AM   #4
shugalou
2nd Gear Member
 
Join Date: Oct 2009
Location: Durham
Posts: 52
Thanks for posting those up it gets a bit louder with the resonator removed.

Amazing how it sounds so docile stock compared to this.
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