Skip to product information
1 of 1

COBB GESi Catted Downpipe - Fits 2008-2020 STi-WRX - 524210

COBB GESi Catted Downpipe - Fits 2008-2020 STi-WRX - 524210

SKU: COBB-524210
Regular price $950.00 USD
Regular price Sale price $950.00 USD
Sale Sold out

The COBB 3" GESi Catted Downpipe for 2008-2014 WRX and 2008-2020 STi models is a direct replacement piece made from 304 stainless steel construction with a bellmouth CAD designed cast turbo outlet for maximum flow. Includes two o2 bungs for stock and aftermarket sensors.


Vehicle Fitment: 2008-2014 WRX 2008-2020 STiFeatures:

  • CAD-Designed Cast Turbo Outlet for Maximum Flow
  • 304 Stainless Steel for Corrosion Resistance
  • High Flow GESi Catalytic Converter
  • Two O2 Bungs for Factory & Aftermarket Sensors
  • Included Adapter Utilizes Stock Donut Gasket for Optimal Sealing & Long Life


Not CARB Legal


The COBB Tuning GESi Catted 3" Downpipe begins with a CAD-designed cast bellmouth that smoothly blends air exiting the turbocharger's turbine housing. Minimizing turbulence when exhaust gasses from the wastegate join into those flowing through the turbine helps to prevent excessive back-pressure. The cast housing is capped off with a COBB logo and auxiliary O2 bung for those wanting to install a wideband sensor early in the exhaust path.


A welded bracket utilizes the factory hard mount near the transmission reducing stress on the turbocharger mounting bolts and studs.

Corrosion-resistant and mandrel bent 3" 304 Stainless Steel tubing carries exhaust gasses downstream into a COBB-exclusive GESi 300 cell high flow catalytic converter. A second O2 bung is located directly after the catalytic converter and is to be used by the OEM Rear O2 sensor.


A CAD-designed, cast 304 stainless steel, flange finishes off the tail section of the downpipe. The reinforced cast flange is less susceptible to warp during assembly and for those of you installing with the strength of Hulk. A stainless adapter flange and included MLS gasket allows direct fit with the factory exhaust or COBB Cat-Back Exhaust utilizing the OEM donut gasket. Included COBB proprietary shoulder nuts allow installation of the factory spring bolts without fuss.


The COBB Tuning GESi Catted 3" Downpipe is one of the premier modifications most owners look to upgrade on their turbocharged Subaru. By increasing exhaust flow coming out of the turbocharger, an upgraded downpipe provides substantial power gains when combined with appropriate tuning.

View full details

Collapsible content

What's in the Box

Reviews

Installation Instructions

Applications

Subaru Impreza WRX Base - 2014
Subaru Impreza WRX Base - 2013
Subaru Impreza WRX Base - 2011
Subaru Impreza WRX Base - 2012
Subaru Impreza WRX Base - 2008
Subaru Impreza WRX Base - 2009
Subaru Impreza WRX Base - 2010
Subaru Impreza WRX STI Base - 2008
Subaru Impreza WRX STI Base - 2009
Subaru Impreza WRX STI Base - 2010
Subaru Impreza WRX STI Base - 2011
Subaru Impreza WRX STI Base - 2012
Subaru Impreza WRX STI Base - 2013
Subaru Impreza WRX STI Base - 2014
Subaru Impreza WRX STI Base - 2016
Subaru Impreza WRX STI Base - 2017
Subaru Impreza WRX STI Base - 2018
Subaru Impreza WRX STI Base - 2019