Stainless Steel Exhaust Header for Honda Accord (1998-2002) 2.3L

High-Flow Stainless Steel Exhaust Header for 1998-2002 Honda Accord (CG)

What it Does: The Stainless Steel 4-2-1 Exhaust Header replaces the restrictive factory exhaust manifold on the 1998-2002 Honda Accord 2.3L to optimize cylinder scavenging and reduce exhaust backpressure.

The Stock Honda Accord Exhaust Manifold Restriction

The factory CG chassis Accord relies on a cast-iron exhaust manifold featuring unequal, cramped runners and an abrupt collector junction. This OEM geometry restricts exhaust gas velocity, generating high backpressure that inhibits complete cylinder evacuation on the F23 SOHC engine. Furthermore, repeated thermal expansion cycles cause the heavy OEM cast iron to develop hairline fractures and fatigue the factory exhaust studs over time.

The Engineering Solution

Fabricated from mandrel-bent T-304 stainless steel, this performance header utilizes a 4-2-1 (Tri-Y) runner configuration engineered to enhance scavenging dynamics and broaden mid-range torque. Smooth 1.75-inch primary tubes merge into stepped secondaries and a 2.00-inch collector to maintain exhaust gas velocity without turbulence. Thick, CNC-machined mounting flanges prevent thermal warping at the cylinder head, while an integrated front pipe flex section absorbs engine pitch and prevents stress cracking. A pre-welded O2 sensor bung ensures factory oxygen sensor retention.

What's Included

• 1x 4-2-1 Stainless Steel Exhaust Header
• 1x Front Pipe with Integrated Flex Section
• 3x Exhaust Gaskets
• 3x Installation Studs
• 3x Mounting Nuts

Technical Specifications

Compatibility

• 1998-2002 Honda Accord DX 2.3L F23 4-cylinder (CG chassis)
• 1998-2002 Honda Accord LX 2.3L F23 4-cylinder (CG chassis)
• 1998-2002 Honda Accord EX 2.3L F23 4-cylinder (CG chassis)

Frequently Asked Questions & Fitment Warnings

Does this fit the CG Accord?

Yes, this is a direct bolt-on for the 1998-2002 Honda Accord equipped with the F23 2.3L 4-cylinder engine. This header does not fit Accord models equipped with the 3.0L V6 engine.

Should the mounting hardware be retorqued after installation?

Yes, inspect and retorque all header flange fasteners after the initial heat cycles to prevent exhaust leaks caused by thermal expansion.

The Honda Performance Caliber

Built to extract maximum volumetric efficiency from the venerable F23 engine, this header delivers crisp throttle response, a refined exhaust note, and durable corrosion resistance for long-term road use.