Subaru WRX STi 15-21 3" Resonated Mid Pipe Kit

  • $545.00

*All headers and large exhaust items may be subject to additional shipping charges*

The PLM 3" resonated mid pipe kit for Subaru WRX STI 3" 2015-2021 was made for maximizing HP gains, more flow, more power, more torque and more sound without sacrificing ride height.

CNC mandrel bending allows for a constant tubing diameter throughout the bend, which results in precise fitment as well as improved exhaust gas flow. Each system is fitted with a resonator, includes stainless steel flanges, and is a direct fit to our muffler deletes / axle backs ( not included) to be finished off with a straight-through, low-restriction racing muffler for uninterrupted flow.


  • Subaru WRX and STI 2015-2021

  • This product does not work with SPT axle back exhaust systems

Key Features:

  • Made of stainless steel

  • Replacement grade 8 hardware

  • CNC machined flanges

  • Stainless steel casting on the Y-collector

  • Precision CNC mandrel bent

  • 3" split to 2.5" tubing

  • Gaskets and bolts included

  • Resonated version - quieter and retains Subaru unique sound!

  • Professionally TIG welded and assembled

  • Direct bolt-on easy installation to PLM axle back

Installation Note:

  • This product may not fit other axle back systems