Stainless Downpipe w/Flex Pipes for BMW N63 B44 4.4 V8
 
Application:
BMW 550i 2011-2013
BMW 550i GT, xDrive 2010-2013
BMW 650i/xDrive 2012
BMW 750i/xDrive 2009-2012
BMW 750Li,/xDrive 2009-2012
BMW Alpina B7/xDrive, B7L/xDrive 2011-2012
BMW X5 2010-2013
BMW X6 2008-2014
A flange bolt design to attach to the exhaust system.
 
Description:
Made of SS201 Stainless Steel. 
Maximizing Smoothest Exhaust Airflow
Includes Both Left and Right Downpipes
TIG welded CNC Machine Flange for Strength and Durability
Increase Engine Output and Efficiency. 
Gain 10-15 HPs 
O2 Sensor Bung Insertions Included
Direct Bolt-In Replacement of Catalytic Converter
Perforated Core Resonator
Integrated Flex Pipe

Note:
Doesn't come with installation instructions
We recommend professional installation Only.

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