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      12-13-2010, 09:35 PM   #1
N8dawg
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Drives: 2008 E90 M3
Join Date: Oct 2009
Location: St Petersburg, Florida

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What is the Best catless system for torque and weight savings

Two new great systems have recently come to the market. The Akrapovic GT4 system and the new redesigned RPI system. Unfortunately the stats like weight, torque and power gains are still in the dark, anyone have any ideas on these two? or anyone know of another brand that meets the criteria?
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