SPDZ1 [08-14 WRX / 08-21 STI] High Flow Catless Downpipe | SPDZ1-DP-SUBSTI

SPDZ1 High Flow Catless Downpipe – 2008–2014 Subaru WRX / 2008–2021 WRX STI

Cast bell-mouth catless downpipe engineered to improve exhaust flow, reduce turbo lag, and unlock more power from your EJ-powered Subaru. Bolt-on fitment, no cutting or fabrication required.

• True cast bell-mouth inlet for smoother airflow and faster spool
• Full mandrel-bent 304 stainless steel construction
• CNC-machined flanges and heavy-duty TIG welding
• Wideband ready — includes extra O2 bung for tuning and logging
• Direct bolt-on fitment for compatible MT models

Fitment

• 2008–2014 Subaru WRX (MT only)
• 2008–2021 Subaru WRX STI (MT only)
• 2005–2009 Subaru Legacy GT (MT only)
• 2005–2009 Subaru Outback XT (MT only)
• 2009–2013 Subaru Forester XT (MT only)

Notes

This is a catless downpipe intended for off-road and track use only. Verify local emissions regulations before installing. A tune or professional calibration is recommended for best results.

What's in the Box

• SPDZ1 High Flow Catless Downpipe
• Hardware and gasket kit (bolts, gaskets, sensor ports)
• Extra O2 bung for wideband/logging

Part Number

SPDZ1-DP-SUBSTI