IE Performance Downpipe For Audi B9 S4 & S5 3.0T

Details LEADING FEATURES Required to support hybrid turbo ECU calibrations High-flow design to support full-bolt on stage 2 power capabilities Removes any downpipe restrictions for full available power Increases exhaust sound with improved engine & turbo notes Improves turbocharger efficiency & speeds up turbo spool Thick-wall casting reduces radiant heat in the engine bay 200 CPSI performance high-flow catalytic converter 304 investment cast downpipe body 304 stainless steel downpipe legs & CAT Massive 6" downpipe body to dual 2.5" downpipe legs Hand TIG-welded for superior reliability and surface finish Direct bolt-in factory replacement CNC machined v-band and bolt flanges for leak-free operation Installs to the stock exhaust or IE Midpipes upgrade *Requires Stage 2 or hybrid turbo ECU tuningMOTORSPORT SOUNDIE's unique thick-wall investment castings produce an aggressive, drone-free exhaust note without the "tinny" sound typical on most full stainless body aftermarket