Invidia Downpipe - Lower Catted w/ Extra O2 Bung - 08-14 Subaru WRX, 08-21 STi, 05-09 LGT & OBXT MT

PLEASE NOTE, if installing onto a Legacy or Outback w/ stock VF40 or VF46 turbo, you may need to trim the divider flange. Please confirm full actuation of the wastegate before finalizing install and trying to tune the vehicle as you will experience extreme over-boosting issues and possibly cause damage.

For automatic vehicles, this downpipe will bolt up to the turbo and catback etc, but may have fitment issues with the transmission bracket etc. For more information, please contact Support@TurnInConcepts.com.

The Invidia Lower Catted Divorced Wastegate Downpipe with 2 bungs is engineered to address the restrictive nature of factory downpipes. The stock design, which starts immediately after the turbocharger, often limits exhaust flow and overall performance. Invidia's downpipe enhances this by incorporating a larger piping diameter and smooth bends, allowing for an efficient and unobstructed exhaust flow. This improved design helps the turbocharger expel exhaust gases more effectively, reducing restrictions and turbulence.

Performance Benefits

Downpipes are a highly sought-after upgrade for performance enthusiasts due to their significant impact on horsepower and torque. By reducing turbo lag and improving throttle response, this downpipe offers a substantial boost in engine performance. Its catted design ensures emissions compliance while delivering the performance gains expected from a high-quality aftermarket part.

DETAILS:

• 304 stainless steel construction
• Divorced wastegate flange option separates the exhaust flow exiting the turbocharger
• 3" piping diameter
• Built-in high-flow catalytic converter at the lower-end of the downpipe
• Designed with an extra O2 sensor for those adding an aftermarket wideband sensor
• Includes new exhaust gasket and hardware to connect the rear to the cat-back

NOTE:

• TUNE REQUIRED - Because aftermarket downpipes will change the power dynamic of your vehicle, a tune is mandatory to optimize the power and running condition of your vehicle
• Does not include the turbo flange gasket - It is highly recommended that you source a new gasket before the installation