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Old 06-13-2012, 07:53 PM   #43
Registered User
Join Date: Oct 2008
Location: Northern Michigan
Posts: 1,375
My Ride: 330i ZHP
Clearly there's a visual difference between the SS reps and these new headers, but what wasn't clear to me is why the different shape of these headers and extra piping would make a difference, and what kind of difference that would make (power, sound, etc).

it still seems strange to me that the extra piping and looping actually produces more power than dumping the exhaust gas straight down into the collector. If they truly were equal length then maybe I could see it. Regardless, if it makes more power then wtf do I care!

Sub'd, love to see a dyno at some point, and if there was a before and after comparison to the SS reps then I believe I'd chub.
2003 BMW 330i ZHP
ESS Twin Screw Stage 2 - Wavetrac - Headers - Borla - BMW Performance
Turner Motorsports - Powerflex - StopTech

Build thread: http://forum.e46fanatics.com/showthread.php?t=696662
Wheelwell: 2003 BMW 3 Series
Fuelly: 2003 BMW 330i
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