Invidia Downpipe Catted Lower w/ Extra O2 Bungs Manual Subaru 2008-2014 WRX / 2008-2021 STI

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The Invidia Lower Catted Downpipe features a divorced wastegate flange and includes 2 O2 sensor bungs for your factory O2 setup, as well as an aftermarket wideband. This is a direct replacement for your factory restrictive downpipe designed to greatly reduce back pressure and turbulence. The result is improved horsepower and torque, along with reduced turbo lag for an improved throttle response. 


  • Made using 304 stainless steel materials
  • 76mm piping diameter
  • Designed with an integrated catalytic converter
  • Divorced wastegate flange
  • 2 Oxygen sensor bungs for the factory O2 and an aftermarket wideband
  • Tune is recommended with any aftermarket downpipe


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