Thread: Z3 Roadster (E36/7) Exhaust?
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  #15  
Old 12-28-2012, 07:49 AM
gbirkemeier gbirkemeier is offline
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Location: Portland, OR
 
Join Date: Aug 2011
Posts: 7
Mein Auto: 1997 Z3 2.8i
Quote:
Originally Posted by vintage42 View Post
I would be interested to know which Magnaflow you found that is a complete axle-back system of flange, pipe and muffler that bolts onto the Z3 6-cylinder, for only $215. I did find one here for $628:
http://www.andysautosport.com/bmw/19...n02032978.html

That is what I paid for the Supersprint on my 1.9L, and a shop did put the Supersprint on for $100.

Finding that Magnaflow axle back did surprise me, because I thought the Magnaflows were universal mufflers of various sizes and either round or oval, that need to have pipes, flanges and hangers custom made and welded to them at great labor cost. I think their muffler flow is straight-through, not tuned for a particular car, and has a sound that is rather loud and deep and continuous.

The other factory-made cat-back systems like Supersprint, Anza, Borla, Abarth etc may sound better, as I think they are tuned to the number of cylinders (pulses) and make specific and varied sounds and intensities at different loads and rpms.
Sorry if my post was not clear. The Magnaflow I was referring to was just a muffler http://www.amazon.com/Magnaflow-1481.../dp/B000CC9CDM

That was my question... What makes an axle-back/cat-back system so much better that it justifies the $800 price tag over just having a shop weld in a properly sized muffler for a total of $300? Do they sound better, do they add more horsepower, or is it just a "cleaner" install?
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