OVERVIEW

Engineered for the iconic 4AG engine, the TODA Racing Metal Exhaust Manifold Gasket is designed to ensure a precision seal for high-performance applications. Whether you are building for the track or optimizing your AE86 for reliability, this reusable metal gasket provides the thermal resistance and structural integrity required for high-revving engines. Its compatibility with the 20V exhaust stud bolt pattern makes it a versatile solution for varying 4AG head configurations.

FEATURES

• Reusable Metal Construction: Crafted from high-grade metal, this gasket is built to withstand extreme heat cycles and can be reused, offering long-term value and waste reduction compared to standard crush gaskets.

• Optimized Flow Dynamics: Featuring an internal diameter of 38mm, this gasket is perfectly matched to complement TODA’s 4-1 specification manifold, which features 37mm diameter ports. This creates a smooth transition, minimizing turbulence and exhaust restriction.

• Precision Engineering: Manufactured to the exacting standards TODA Racing is known for, ensuring a perfect seal between your cylinder head and exhaust manifold.

SPECIFICATIONS

• Brand: TODA Racing

• Engine Application: Toyota 4AG (AE86)

• Material: Heat-resistant Metal (Reusable)

• Internal Diameter: 38mm

• Compatibility: Designed for 4AG (AE86) with 20V exhaust stud bolt pattern compatibility

SCIENCE

The exhaust manifold gasket is a critical junction in an engine's breathing cycle. By matching the gasket’s internal diameter (38mm) closely with the manifold port diameter (37mm), this design eliminates the "step" or ledge that typically causes exhaust gas reversion and turbulence at the flange. Maintaining laminar flow through this transition is essential for maximizing scavenging efficiency, especially in naturally aspirated high-RPM setups like the 4AG.

WHAT IS INCLUDED

• 1x TODA Racing Metal Exhaust Manifold Gasket

FITMENT

• Toyota 4AG Engines (AE86 Chassis)

• Compatible with 20V exhaust stud bolt patterns.