*OPEN BOX" PLM 3 inch Catted Downpipe + Midpipe Kit for the GR Corolla 2023-2024

We have an OPEN BOX PLM 3-Inch downpipe for the GR Corolla. This was installed but not ran long and removed from a vehicle. Small scratches from the install process however overall complete and in like new condition. Was removed from a 2025 GR Corolla after having issues with CEL despite O2 spacer installed. Known to work on 2023 & 2024 MY GR Corollas however not 2025+. Comes with O2 spacer.

PLM 3-inch Catted Downpipe + Midpipe Kit for the GR Corolla 2023-2024

The PLM 3-Inch Catted Downpipe for the GR Corolla is engineered to elevate your vehicle’s performance and driving experience.

Featuring a precision-crafted 3-inch design, this downpipe enhances exhaust flow for improved turbo efficiency, delivering noticeable gains in horsepower and torque. The high-flow 400-cell metallic catalytic converter maintains optimal emissions functionality while reducing backpressure, ensuring both power and reliability. Constructed from premium stainless steel for durability and corrosion resistance, it is a direct bolt-on upgrade that seamlessly integrates with the factory exhaust system.

Unlock your GR Corolla’s true potential with this expertly designed performance upgrade.

• 4-inch off the turbo connection.
• 3-inch stainless tubing.
• Precision CNC mandrel bend tubing.
• EPA compliant catalytic converter.
• 400-cell metallic core catalytic converter.
• 304 stainless steel construction.
• O2 sensor bung.
• Performance gains over 20hp+
• Direct bolt-on to factory exhaust system
• Hand TIG welds
• Includes hardware

GR Performance Parts recommends installing a O2 defouler with this product. We cannot guarantee no CEL with a high flow catalytic converter which is installed without a defouler.

We have reported issues with this downpipe installed on 2025+ GR Corolla's.