Honda Civic Si / Del Sol Si & Acura Integra B16 / B18 VTEC Coil-On-Plug COP Conversion Adapter Plate (K20 / K24 / S2000 Coils)

Convert your Honda B16A or B18C VTEC engine to a modern coil-on-plug (COP) ignition system with this premium billet aluminium COP adapter plate, precision CNC-machined from 6061-T6 billet aluminium for permanent durability and dimensional accuracy. The factory distributor-based ignition system on B-Series VTEC engines is a known performance limitation — internal distributor wear, ignition coil weakness, and limited spark energy at high RPM all conspire to limit ignition reliability on built and boosted B-Series builds. This adapter plate enables a clean, professional conversion to individual coil-on-plug ignition using readily available K20, K24, or S2000 ignition coils, eliminating the distributor as a failure point and dramatically improving ignition energy, spark consistency, and high-RPM performance. Mounts directly on top of the factory B-Series VTEC valve cover and adapts OE-fit K-Series ignition coils to your B-Series engine for a clean, OEM-grade coil-on-plug installation.

Features:

• COP conversion enabler – allows direct fitment of K-Series (K20 / K24) or S2000 ignition coils to B-Series VTEC engines, eliminating the distributor-based ignition limitation
• Premium 6061-T6 billet aluminium construction – aircraft-grade aluminium delivers exceptional strength, lightweight performance, and long-term durability
• CNC machined precision – manufactured to stringent tolerances with no burrs or sharp corners, ensuring perfect fitment atop the factory B-Series VTEC valve cover
• Anodized surface finish – delivers a clean metallic aesthetic with corrosion resistance for long-term engine bay durability
• Direct bolt-on installation – mounts to factory valve cover spark plug holes without modification
• Compatible with widely available K-Series and S2000 coils – uses readily available, affordable ignition coils sourced from common Honda performance applications
• Available in silver or black anodized finish to match your engine bay aesthetic

Specifications:

• Condition: 100% Brand New
• Type: Coil-On-Plug (COP) Conversion Adapter Plate
• Material: 6061-T6 Billet Aluminium (Aircraft-Grade)
• Construction: CNC Machined
• Surface Finish: Anodized (Silver / Black available)
• Quantity: 1 adapter plate per pack
• Position: Atop B-Series VTEC Valve Cover
• Coil Compatibility: K20, K24, or S2000 OE Ignition Coils
• Purpose: Distributor-to-COP Ignition Conversion

Fitment:

• Engine Compatibility: Honda B16A and B18C VTEC engines
• Coil Compatibility: K20 / K24 ignition coils OR S2000 ignition coils
• Honda Civic Si (1999 – 2000)
• Honda Del Sol Si (1994 – 1997)
• Acura Integra (1994 – 2001)
• Compatible with B-Series VTEC engines only – not compatible with non-VTEC B-Series, D-Series, F-Series, H-Series, or other Honda engine families
• Confirm engine code and intended coil source before ordering

Contents:

• 1x Coil-On-Plug COP Conversion Adapter Plate

Benefits:

• Eliminates the factory distributor as a performance limitation – distributor wear, cap and rotor degradation, and limited spark energy are removed entirely from the ignition system
• Dramatically improved ignition energy and spark consistency – modern K-Series and S2000 coils deliver significantly higher spark energy than the original distributor-based system, particularly valuable for built and boosted B-Series engines
• High-RPM performance improvement – COP ignition maintains consistent spark energy at high RPM where distributor systems begin to lose effectiveness
• Reduced ignition system maintenance – eliminates distributor cap, rotor, and ignition wires from the maintenance schedule
• Cleaner engine bay aesthetic – removes the bulky distributor and ignition wire harness for a tidier, more modern engine bay appearance
• Compatible with widely available, affordable ignition coils – K20 and S2000 coils are readily sourced from junkyards, online marketplaces, and aftermarket suppliers at reasonable cost
• Premium 6061-T6 billet aluminium construction delivers OEM-grade fitment quality and long-term durability for permanent installation

Installation Notes:

• Engine compatibility verification required: Confirm your engine is a B16A or B18C VTEC engine before ordering – this adapter is not compatible with non-VTEC B-Series or other engine families
• Coil sourcing required: This adapter plate does not include ignition coils – source K20, K24, or S2000 OE ignition coils separately before installation
• Wiring harness modification required: COP conversion requires custom or aftermarket wiring harness adaptation to drive the new coils from your ECU – plan for this work before installation
• ECU tuning recommended: Optimal COP performance typically requires ECU tuning to take full advantage of the improved ignition system – particularly important for built or boosted engines
• Remove the original distributor, ignition wires, and spark plugs before installing the adapter plate
• Mount the adapter plate atop the factory B-Series VTEC valve cover, aligning with the factory spark plug holes
• Install K-Series or S2000 ignition coils into the adapter plate openings – verify proper coil seating and clearance before final installation
• Ensure all coil wiring connections are properly secured and routed away from heat sources
• Test ignition system operation at idle and through the RPM range before driving
• Professional installation strongly recommended unless you have experience with engine wiring harness modification and ignition system service
• If unsure about compatibility with your specific Honda or Acura variant, contact our team with your year, model, engine code, and intended coil source before ordering

Warranty:

• 12-month s