Exhaust Headers for Toyota Corolla (1985-1987) 1.6L

Ditch the heavy, restrictive factory cast iron and let your Hachi-Roku finally breathe the way it was meant to.

Performance Tri-Y Exhaust Header for Toyota Corolla (AE86)

The chassis is legendary for its balance, but if you're still running the stock exhaust manifold, you're choking out the high-revving character of the engine. The factory cast iron pieces are notorious for heat-soaking, cracking over time, and severely restricting airflow above 5,000 RPM. This restriction robs you of top-end power and dulls the throttle response these cars are famous for.

This 4-1 Tri-Y design is the definitive fix for 1.6L DOHC owners wanting to wake up their powertrain. By utilizing computerized mandrel bends and T-304 stainless steel, this setup eliminates the exhaust turbulence found in the OEM casting. Whether you are running the original 16-valve or have swapped to a 20-valve silver or black top, this header provides the necessary clearance and flow to maximize output.

Why You Need This Upgrade

• Optimized Exhaust Scavenging: The Tri-Y racing design smooths exhaust gas pulses, resulting in quicker revs and a broader torque curve.
• Proven Power Gains: Experience a noticeable bump of 10 to 15 horsepower, transforming how the car pulls out of corners.
• Bulletproof Construction: TIG-welded T-304 stainless steel and CNC-machined flanges prevent warping, cracking, and exhaust leaks under heavy track abuse.
• Versatile Sensor Fitment: Includes two O2 sensor bungs (Standard and Toyota style) for seamless integration with your engine management.
• Flow-Matched Piping: Steps smoothly from 1-7/8" OD inlets to a 2-1/2" OD main pipe, keeping exhaust gas velocity high.

Installation Notes

This is a direct bolt-on installation to the engine block, shipping complete with the necessary metal gaskets and hardware. However, due to the tight clearances in the engine bay and the potential for rusty studs on a classic chassis, a professional installer is highly recommended. No instruction manual is included. Soak your factory hardware in penetrating oil overnight before tackling this job to prevent snapped studs.

Replaces These OEM Applications & Part Numbers

• 1985-1987 Toyota Corolla AE86 1.6L DOHC
• Toyota 16v & 20v Engines

Package Includes: 1 X Exhaust Manifold Header, 1 X Set of Gaskets, Hardware

Stop losing power to mid-80s manufacturing compromises. Bolt up this stainless header and get the crisp, high-RPM pull your car deserves.