- 304 Stainless Steel Piping
- 3 inch Piping Diameter throughout
- TIG Welded
- Slip Fit Rear (For Expanded Fitments)
- Divorced Wastegate
- 2 Oxygen Sensor Bungs (1 for Factory O2 Sensor / 1 for Aftermarket Wideband Gauge Sensor)
- Smoother Exhaust Flow
- Increased Horsepower & Torque
- 1 x Catted Downpipe
- 1 x Exhaust to mid-pipe Gasket Hardware
- 1 x Clamp
- Does NOT include Turbo to Downpipe Gasket (see sku = 028001)
SMOOTHER EXHAUST FLOW
PERRIN offers this replacement Downpipe for those looking to improve performance on their WRX/STI and are using the vehicle in an off-highway, off-road and/or for competition where the OEM unit won’t suffice.
The PERRIN Performance Catted Downpipe features a divorced wastegate and cat which will separate the exhaust gas exiting the downpipe, creating a smoother exhaust flow, thus resulting in more horsepower and torque. The downpipe is constructed of 304 stainless steel 3-inch mandrel-bent tubing and bolts up to any stock replacement cat-back or stock unit. PERRIN Performance has created a unique design that utilizes a rear slip joint so this downpipe can be used on 2002–2014 WRX / 2004-2021 STI alike! Gone are the days of not having a properly sealed exhaust system, this downpipe will allow you to ensure the proper lengths are had with whatever exhaust system you are using!