Perrin Downpipe Catted Manual Subaru 2002-2014 WRX / 2004-2021 STI
Perrin's new 3in divorced wastegate downpipe with the slip fit rear in 304 stainless steel was designed for expanded fitments. The downpipe comes with a single catalytic converter.Featuring a clever, two-piece design, for easy installation. The adjustable tail section will adapt to OEM and aftermarket Cat-Back exhaust systems. We include an additional O2 sensor behind the turbo to easily mount a Wideband O2 sensor for AFR gauges or future tuning.
The divorced wastegate design channels the exhaust from the wastegate away from the main flow coming from the turbo. This reduces turbulence, improves performance, and keeps any pulses from the wastegate from slowing the turbo itself.
Built from CNC mandrel bent 3" tubing and featuring a full stainless-steel catalyst, the PERRIN downpipe features 304 stainless-steel for high corrosion and heat resistance up to 1800 degrees Fahrenheit.
Thick .500" CNC cut stainless-steel flanges will not warp and are designed to bolt up to your PERRIN or OEM cat-back exhaust system.
The PERRIN Downpipe comes with a brushed stainless-steel finish featuring TIG welding for precise, clean welds.
Tuning is required for proper and safe operation with the PERRIN Downpipe. This is not designed as an OEM replacement in areas where factory catalysts are required. Check all local, state, and federal laws prior to purchase and installation.
•Two-piece design for easy installation
•Divorced wastegate to improve performance
•CNC mandrel bent 3” tubing
•Brushed stainless-steel finish
•Heat resistance up to 1800 degrees Fahrenheit
- 304 Stainless
- 3 Inch
- TIG Welded
- Divorced Wastegate
- Single Catalytic Converter
- Slip Fit Design For Expanded Fitments*
- Off Road Only