The B-series engines from Honda and Acura remain a popular choice for performance enthusiasts. Upgrading headers, studs, mounts, and related exhaust components can unlock better flow, more power, and improved reliability. This article highlights five highly compatible products that fit B/D-series builds, with practical details to help you compare options and decide which parts to order for your project.
Summary of selected products:
- AUTOVIC Exhaust Manifold Stud Kit – 9 Pcs, 304 stainless steel for Honda/Acura B/D Series
- DNA Motoring TM-B-S-RH Stainless Steel Turbo Manifold – Polished T-304 stainless with equal runners
- DNA MOTORING CBE-HC922-NRT Stainless Steel Cat Back Exhaust System – 92-00 Honda Civic variations
- X AUTOHAUX 10pcs Stainless Steel Exhaust Manifold Bolt Stud Hardware – For Honda/Acura B/C/D/F/H/K Series
- maXpeedingrods 3 Bolt Engine Swap Mount Kit – For Honda Civic EK B/D Series
AUTOVIC Exhaust Manifold Stud Kit for Honda/Acura B/D Series
These 304 stainless steel studs and nuts are designed to replace old hardware on B/D-series manifolds, providing corrosion resistance and long-term durability. The kit includes nine studs and nine nuts, making it a practical upgrade for maintenance or rebuilds. The rugged construction helps maintain seal integrity under heat and vibration, which can improve exhaust flow consistency over time for Honda and Acura builds using B-series engines.
Key features include compatibility with all Honda/Acura B/D Series motors and replacements for stock hardware. Installation should verify the correct part count upon receipt to ensure a complete kit for your project. Users can expect reliable, reusable fasteners that withstand engine bay conditions and offer a straightforward upgrade path for refurbished manifolds.
DNA Motoring TM-B-S-RH Stainless Turbo Manifold
The DNA Motoring turbo manifold is crafted from high-quality T-304 stainless steel, featuring a tubular design with equal runners to promote balanced exhaust flow from each cylinder. This construction helps reduce turbulence and potential bottlenecks in B-series turbo setups. TIG welded and CNC machined flanges are designed to resist cracking and wear, contributing to a durable, reliable upgrade for forced induction builds on B/D-series engines.
Engineered to support performance gains, the manifold’s stainless steel composition also improves durability under boost pressures. This option is suitable for enthusiasts seeking improved exhaust efficiency and a robust mounting solution for turbocharger installations in B-series projects.
DNA MOTORING CBE-HC922-NRT Stainless Steel Cat Back Exhaust System
This cat-back system is designed for 1992-2000 Honda Civic Coupe/Sedan models, with T-304 stainless steel construction and computerized mandrel bends. The upgrade aims to enhance overall exhaust flow, delivering a noticeable increase in horsepower and torque at low end, as documented by dyno testing. The system is focused on improving tone and exhaust efficiency while maintaining a smooth throttle response for B-series vehicles converted to modern exhaust configurations.
Considerations include compatibility with the target Civic generation, the quality of the mandrel bends, and how the upgraded piping affects backpressure, noise levels, and emissions compliance in your state. This option provides a balanced balance of performance, durability, and ease of installation for riders seeking a comprehensive exhaust upgrade beyond headers alone.
maXpeedingrods 3 Bolt Engine Swap Mount Kit for Honda Civic EK B/D Series
The 3-bolt engine swap mount kit is designed for Honda Civic EK models using B/D-series engines, with aluminum and polyurethane components said to offer improved rigidity and reduced wheel hop. This kit can help stabilize the engine during hard acceleration and cornering, delivering more predictable throttle response and better handling for swapped or upgraded B-series builds. The mounts are aligned to OE specifications to ensure compatibility with manual transmissions in standard EK platforms.
Installation notes include checking bolt patterns and ensuring the kit matches the intended engine code and transmission setup. The mounts are intended to offer a balance of weight savings, durability, and performance, supporting a more controlled upgrade path for B-series enthusiasts adding forced induction, high-output builds, or improved reliability under competition-like usage.
Nakkaa CNCH-0BD1-1 Tucked Budget Engine Harness for Civic/Integra
While not a header per se, a tucked budget engine harness is a practical companion upgrade for B-series builds, especially when installing revised engine management or relocation projects. This harness supports compatibility with 1992-1995 Civic and Integra models in B/D-series configurations, with a focus on dependable electrical connections and reliable performance under demanding conditions. End-user notes emphasize checking that the pictured harness matches the vehicle to ensure correct integration with your B-series swap or upgrade.
CNCH-OBD2-1 D & B-Series Engine Wiring Harness
Designed for Honda Civic Integra B16/B18 D16 engines, this OBD2 wiring harness offers a budget-friendly replacement for stock harnesses during B/D-series swaps or upgrades. It features robust materials intended to handle the thermal and electrical demands of automotive applications. The kit is described as a practical option for addressing misfires, idling issues, and injection faults when reconfiguring or maintaining B-series powertrains.
RYANSTAR Spark Plug Cover in Carbon Fiber Style
The carbon fiber style spark plug cover is designed to fit Civic B16/B18 engines, providing a sealed cover that can help reduce noise and protect connections. While not a header component, it complements a performance-oriented B-series build by contributing to engine compartment organization and noise reduction in boosted or naturally aspirated setups.
Buying Guide: B Series Header Upgrade Considerations
- Compatibility: Confirm engine code (B, D, B/D) and year to ensure the part fits your Civic or Integra model and your exhaust path configuration (header, turbo, or cat-back).
- Material and durability: Stainless steel options (AISI 304 or equivalent) offer corrosion resistance and longevity in high-heat conditions typical of B-series engines. Verify weld quality and flange tolerance for a leak-free seal.
- Performance goals: For headers and manifolds, assess whether you want improved scavenging, reduced backpressure, or better turbocharger response, and match the part to your chosen setup (NA vs. forced induction).
- Installation and fitment: Some parts assume standard OE mounting points; verify that bolt patterns, thread sizes, and clearances align with your existing engine bay configuration and transmission setup.
- Supporting components: Consider studs, nuts, gaskets, and mounting hardware as necessary. Upgrading to a complete kit may reduce installation time and improve reliability.
- Emissions and local regulations: Some exhaust upgrades can affect emissions readings and inspection requirements. Check local rules to ensure compliance with your drive area.
- Cost vs. benefit: Evaluate the overall value of a kit (e.g., studs with nuts vs. a full manifold or cat-back system) in relation to your performance goals and budget.
Overall, the combination of a high-quality exhaust manifold or turbo manifold, compatible studs, and a robust wiring or engine harness can yield meaningful gains for B-series builds. When evaluating options, prioritize parts that align with your power goals, reliability needs, and the specific Civic/Integra generation you own. The products listed above offer a mix of durability, performance potential, and practical compatibility for B/D-series upgrades.