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Upgrade and replace your obsolete, illegally deleted, restrictive old and shot to hell, factory 1990s Porsche Catalytic converter. A super high-flow "Clean and Green" TM upgrade for all 965, 964 Turbos, C2 Turbos that have NO CATALYTIC converter with Fabspeed Motorsports 200cell HJS German High flow Catalytic Converter.  HJS German high-flow trimetallic "state of the art" catalytic converters flow 90+% of a straight pipe. These 2024 cats are European certified European homologated a awesome upgrade for all these cars. A non-restrictive solution available for STREET or RACE applications. FEATURES:  Fits all Porsche 964 Turbo vehicles. Also designated as C2-Turbo and model 965.  1990-1994 with 3.3 liter and 1994 3.6 liter flat six engines. Available in a Street emissions EPA compliant  or Race Configuration (Includes either 200-Cell HJS Sport Cats for the STREET or Catbypass Pipes for historic sports car racing) Significantly improves power and throttle response CLEAN and GREEN Performance from Fabspeed. For 964 Turbos of which the factory catalytic converter was REMOVED or discarded decades ago FABSPEED HJS German high-flow catalytic converter BRINGS all cars to EPA compliance with the Worlds Finest state of the art catalytic converter .  HJS German state of the art catalytic converters FLOW the equivalent of 90+% of a straight pipe.  Saves 15 lbs from the rear of the vehicle Constructed from high-quality 14-16 gauge C.N.C. mandrel-bent T304L stainless steel for optimum flow and maximum durability Direct bolt on installation for factory restrictive catalytic converter 1980s early 1990s technology. A very very restrictive factory catalytic converter.   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty Why We Choose HJS Catalytic Converters:  HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.    If you'd like to learn more, watch our video about HJS catalytic converters.