D16 F20 R18 Headers

Explore our D16 • F20 • R18 Headers collection, featuring high-performance exhaust headers designed to maximize power, torque, and efficiency for Honda’s D-series, F-series, and R-series engines. Each header is crafted from premium stainless steel with precision mandrel bends for optimal exhaust flow, improved throttle response, and a deep, aggressive tone. Perfect for street or track applications, these headers ensure a reliable fit with both factory and aftermarket components. Backed by a 1-year workmanship warranty and free U.S. shipping on orders over $99, Private Label MFG delivers the quality, performance, and durability your build deserves.

Frequently Asked Questions

What is the performance difference between a 4-1 and a 4-2-1 (Tri-Y) header design?

The choice between a 4-1 and a 4-2-1 (Tri-Y) header design significantly impacts your engine's power delivery. A 4-1 header design features four primary tubes that merge directly into a single collector. This design typically excels at higher RPMs, promoting maximum horsepower gains in the upper end of the power band due to its efficient exhaust scavenging at high flow rates. On the other hand, a 4-2-1 (Tri-Y) header design merges the four primary tubes into two secondary tubes, which then merge into a single collector. This staged merging process is engineered to optimize exhaust scavenging across a broader RPM range, resulting in a more balanced power curve with enhanced mid-range torque. Your ideal choice depends on your driving style and engine characteristics: a 4-1 for top-end power, or a 4-2-1 for a stronger, more usable mid-range.

How can I confirm if a header will fit my specific vehicle model, year, and engine combination?

Ensuring proper fitment is crucial for optimal performance and a smooth installation. We provide detailed fitment information on each product page, which is the primary resource for confirming compatibility. Please carefully review the listed vehicle model, year range, engine code (e.g., K20A, B18C), and transmission type (manual or automatic). Some headers may also have specific notes regarding chassis codes, sub-models, or other modifications required. If you have any doubts or your vehicle falls on the cusp of a listed range, we recommend contacting our customer support team with your vehicle's full details, including the VIN, to ensure you select the correct header for your specific application.

What installation hardware, such as gaskets and bolts, is included with the header?

We strive to provide a comprehensive kit to facilitate a straightforward installation. Most of our headers include the necessary gaskets (e.g., header-to-engine block gasket, header-to-midpipe/catalytic converter gasket) and hardware (e.g., bolts, nuts, washers) required for a direct bolt-on installation. Our headers also typically come with pre-welded O2 sensor bungs in the correct locations. However, specific inclusions can vary by product. We always recommend checking the "What's Included" or "Kit Contents" section on the individual product page for the most accurate and up-to-date list of included hardware for your chosen header.

Are your headers designed to connect to the factory catalytic converter location?

The design of our headers regarding catalytic converter compatibility varies depending on the specific product and its intended application. Many of our headers are designed as direct bolt-on replacements that will connect seamlessly to your factory catalytic converter or a compatible aftermarket catalytic converter/test pipe in the OEM location. However, some of our performance-oriented headers, particularly those designed for off-road or racing applications, may eliminate the catalytic converter or relocate its position, requiring a custom mid-pipe or an aftermarket high-flow catalytic converter. We strongly advise checking the product description for specific details on catalytic converter compatibility and any potential implications for emissions compliance in your region.