---Manufactured from high quality T304 grade polished stainless steel ---Mandrel bent and fully TIG welded for strength and durability ---Free flowing catalyst replacement to get the most from the iconic S54 engine ---Designed to improve power and torque across the entire RPM range ---Sold for off road and track use only Compatible with: --- BMW 3 Series E46 3.2l M3 2000-2006 models.
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