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Subaru WRX STI Exhaust Parts

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1400 360 Ascent B9 Tribeca Baja Brat BRZ Crosstrek Deluxe DL FE Forester GF GL GL-10 GLF Impreza Justy Legacy Loyale Outback RX Solterra Standard Star SVX Trailseeker Tribeca Uncharted WRX WRX STI XT XV XV Crosstrek
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013

This page brings together exhaust parts for the Subaru WRX STI covering model years 2013–2021, including pipes, mufflers, manifolds, catalytic converters, gaskets, and the hardware that holds the system together. Pick your Subaru WRX STI's year above to narrow the list to exhaust parts with confirmed fitment. Every part shown is checked against our vehicle data.

Shop Subaru WRX STI Parts by Category

Exhaust and Tail Pipes
Exhaust and Tail Pipes
Mufflers
Mufflers
Exhaust Manifolds
Exhaust Manifolds
Catalytic Converter
Catalytic Converter
Brackets, Flanges and Hangers
Brackets, Flanges and Hangers
Hardware
Hardware
Gaskets and Sealing Systems
Gaskets and Sealing Systems

What's here for your Subaru WRX STI

  • Exhaust and tail pipes — including cat-back, dual-outlet, and stainless steel configurations
  • Gaskets and sealing systems — flange gaskets and OE-style sealing components
  • Catalytic converters — direct-fit and universal options
  • Exhaust manifolds — OE replacement and aftermarket styles
  • Mufflers — including universal and application-specific fitments
  • Brackets, flanges, and hangers — mounting and support hardware for the full exhaust system

The widest selection here comes from AP Exhaust, MBRP, Magnaflow, and Victor, spanning everything from OE-replacement pieces to stainless steel cat-back systems. Other categories Subaru WRX STI owners shop for: Subaru WRX STI Springs and Suspension Parts, Subaru WRX STI Shocks and Struts and Subaru WRX STI Manual Transmission Parts, or browse all Subaru WRX STI parts and accessories.