Where is the catalytic converter GR86?
The catalytic converters in the GR86 are located along the undercarriage of the exhaust system, usually as two units: a close-coupled converter near the engine and a second converter further back in the mid-pipe. Exact positions vary by model year and market.
In practice, Toyota’s GR86 employs a twin-cat setup to meet emissions standards while keeping the compact sport coupe’s exhaust routing efficient and space-conscious. Access for inspection or maintenance is typically from beneath the vehicle, with heat shielding protecting surrounding components.
Two-cat layout and general placement
Most GR86 models use a dual-catalytic converter arrangement. The close-coupled cat is mounted immediately downstream of the exhaust manifold, under the engine bay, and the secondary cat sits farther back along the mid-pipe toward the rear of the car. Both are part of the undercarriage exhaust path and are shielded to withstand high exhaust temperatures.
Key locations to know for quick reference:
- Close-coupled catalytic converter (first cat): located just after the exhaust manifold, under the engine, before the mid-pipe.
- Secondary catalytic converter (second cat): located farther back along the exhaust path, typically on the mid-pipe or toward the rear section of the undercarriage.
- Heat shielding: protective covers around the converters to minimize heat transfer to nearby components and the cabin.
In short, the GR86’s exhaust design places one cat near the engine and a second further downstream, balancing immediate emissions control with long-run efficiency.
Market and year variations
Exact routing and the number of catalytic converters can vary by market (e.g., US, EU, or Japan) and by model year. Some markets may have slight differences in how the exhaust is routed or shielded, but the two-cat concept remains common across GR86 variants.
Maintenance and safety considerations
Because catalytic converters are valuable targets for theft, owners should park in secure areas and consider protective shielding where legally permitted. If you’re inspecting or servicing the exhaust system, use proper jack stands and consult a qualified technician; do not attempt complex work under the vehicle without the right tools and training.
Summary
The GR86 typically hosts a two-cat exhaust layout along its undercarriage: a primary close-coupled catalytic converter near the engine and a secondary converter farther back in the mid-pipe. Exact placement can differ slightly by market and year, but the dual-cat configuration is standard to meet emissions requirements while preserving performance. For precise location in a given car, refer to the service manual or consult a licensed technician.
