Stainless Steel Long Tube Exhaust Header for 2002-2006 Acura RSX Type-S

Unleash Your K20's True Voice

Imagine the moment you first press your throttle with this header installed—the restrictive factory exhaust manifold replaced by free-flowing stainless steel tubes that let your engine breathe the way Honda's engineers intended. Feel the difference as your K20 pulls harder through the mid-range and screams toward VTEC crossover with newfound urgency. Hear the intoxicating note of a properly tuned four-cylinder at full song, each cylinder's exhaust pulse perfectly orchestrated through the 4-2-1 collector design.

This isn't just about sound—though the aggressive exhaust note will make every drive more engaging. This is about liberating horsepower trapped by your factory exhaust manifold's compromised design. By reducing exhaust backpressure and optimizing scavenging effects, this long tube header extracts measurable power gains throughout your RPM range, with the most dramatic improvements where you use them most: in the VTEC powerband that makes the RSX Type-S legendary.

Race-Proven 4-2-1 Design Engineering

The 4-2-1 collector configuration isn't just tradition—it's physics working in your favor. This stepped design creates beneficial exhaust scavenging that helps pull spent gases from cylinders more efficiently, while the longer primary tubes optimize exhaust pulse timing for improved mid-range torque. The result is power gains you'll feel from 4,000 RPM all the way to redline.

Constructed from high-quality stainless steel, this one-piece header resists the extreme heat and corrosion that destroy lesser exhaust components. The lightweight design reduces rotating mass on your engine, allowing it to rev more freely while the durable construction ensures years of reliable performance—whether you're attacking your favorite backroad or laying down hot laps at the track.

Precision Craftsmanship That Shows

• CNC-Machined Flanges: Perfect port matching eliminates restrictions and ensures leak-free sealing against your cylinder head—critical for maximum performance and reliability.
• TIG & MIG Welded Construction: Professional-grade welding creates strong, clean joints that withstand extreme thermal cycling and vibration without cracking or failing.
• Stainless Steel Construction: Premium material resists corrosion and heat discoloration, maintaining its appearance while delivering long-term durability.
• Lightweight Design: Reduces weight compared to cast iron factory manifolds, improving throttle response and reducing stress on engine mounts.
• 2.5" Outlet Diameter: Properly sized collector outlet matches performance exhaust systems for optimal flow without sacrificing low-end torque.
• Direct Bolt-On Fitment: Designed specifically for RSX Type-S models with no modification required—uses factory mounting points for clean installation.

Performance You'll Measure and Feel

The improvements go beyond dyno numbers. You'll notice sharper throttle response as your engine expels exhaust gases more efficiently. Acceleration feels more urgent, particularly in the 5,000-8,000 RPM range where the K20 comes alive. The VTEC engagement becomes more pronounced as the reduced backpressure allows your high-lift cam profile to work more effectively.

Combined with a quality cat-back exhaust system and proper tuning, this header forms the foundation of a serious naturally aspirated power build. Whether you're building a dedicated track weapon or simply want your daily driver to deliver more excitement, this header transforms how your RSX Type-S performs and sounds.

The Soundtrack of Performance

Beyond the power gains, you'll appreciate the aggressive exhaust note that announces your RSX's presence. Gone is the muted factory sound—replaced by a purposeful growl at idle that builds to a mechanical symphony as you approach VTEC crossover. This is the sound that enthusiasts spend thousands chasing, and it starts with a proper header that lets your engine's true character shine through.

Built for Type-S Precision

This header is engineered exclusively for RSX Type-S models equipped with the K20A2 (US models) or K20Z1 (later US models) engines. The precision fitment accounts for the unique port locations, mounting points, and clearances of these high-performance variants. It also fits JDM and European Honda Integra DC5 models from the same years.

Important: This header will NOT fit base RSX models with the K20A3 engine, which features different port configurations and mounting specifications.

Installation Considerations

Direct bolt-on installation uses your factory mounting points and hardware locations. While mechanically inclined enthusiasts with proper tools can complete this installation, professional installation is recommended to ensure proper fitment, secure mounting, and leak-free operation. Header installation requires working under the vehicle with the exhaust system removed—proper jack stands, safety equipment, and mechanical knowledge are essential.

Note: Installation instructions are not included. Refer to a factory service manual or consult with an experienced technician for proper installation procedures, torque specifications, and gasket requirements.

The Foundation of Performance

Every serious RSX Type-S build starts with proper breathing—and that starts with removing the restrictive factory exhaust manifold. This stainless steel header represents the first step toward unlocking your K20's full potential, whether you're building a weekend track car or simply want your daily driver to deliver the performance Honda engineered into the Type-S from the factory.