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957 S / GTS Fabspeed ECU Tuning Upgrade
WARNING CA Proposition 65 Message:
0" Cat-Back Active Valve with Twin 4
be prepared to preface every throttle stab by saying "hold on"
when HJS Sport Cats are installed
Fabspeed Ferrari F430 Factory/OEM Catalytic Converter Re-Coring (2005-2009)) - FS.FER.430.OECCR 570GT / 540C SOUL Competition Package 957 S / GTS FabspeedReplace the worn out or broken core of your factory Porsche catalytic converter(s) with a new high performance HJS tri metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace the inner core of your Porsche catalysts with new high performance cores from HJS Germany. These premium catalytic converters are a fantastic way to refresh your factory exhaust system without sacrificing the factory appearance. Please call us at (267) 715