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The RacePort EM (electro-mechanical) is a motorsport quality
Genuine BorgWarner Turbines with curved clipped wheels
Better performance by reducing back pressure
lower pressure drop: @ 0
Wagner Tuning Audi S4 B9 300CPSI EU6 Downpipe Kit volkswagen golf mk5 The RacePort EM (electro-mechanical) isDownpipe Kit with 300CPSI Racing catalyst for Audi S4 B9 3,0TFSI made out of high quality stainless steel 1. 4301 (SS304) complete 2x 3 and adapter for stock exhaust CAD designed and flow optimized 300CPSI with EU6 coating Racing Metal Catalytic Converter 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque Error display in the DME possible.