Fabspeed Ferrari Testarossa Sport Catalytic Converters M3 \ The patented IPD Plenum design

The patented IPD Plenum design works exceptionally well with all forced induction applications and the 991 Turbo is no exception

Pioneering anti-resonance technology makes for an even more enjoyable experience while offering Dyno verified maximum torque and Horsepower

So incorporating our signature resonated X-Pipe design to replace the heavy and restrictive factory mufflers was implemented to achieve the results we wanted

IPD Plenum

our Side Muffler Bypass Pipes allow the maximum amount of exhaust flow possible from the 991 GT3 / GT3 RS engine

Fabspeed Ferrari Testarossa Sport Catalytic Converters M3 \ The patented IPD Plenum designHigh performance bolt on replacements for the heavy and restrictive OEM catalytic converters; increases power, sound, and throttle response. FEATURES: Fits all Ferrari Testarossa vehicles (1984 1996) Utilizes a 300 cell High Flow Catalytic Converter for maximum performance Constructed from mirror polished T304L stainless steel Optimized for maximum performance with NO catalyst generated check engine light, guaranteed All Fabspeed performance products