Downpipe Kit without precatalyst converter and with 2x 100CPSI Racing catalyst for Audi TTRS 8S and RS3 8V Facelift

made out of high quality stainless steel cast 1.4301 (SS304)
without precatalyst for maximum performnace
complete 2x Ø70mm
CAD-designed and flow optimizied
2 lambda probe connections
2x 100CPSI EU6 racing metal catalyst converter 
100% perfect fit, plug and play
less thermal load on the turbocharger
more power by reducing back pressure
significantly higher torque
suitable for Audi TTRS 8S and for Audi RS3 8V facelift models
compatible to stock after-catalyst-pipes