Rywire B/D-Series Mil-Spec Engine Harness w/Chassis Adapter — Fits 1988-1989 Honda Civic DX EF

SKU: RYWRY-B1-MILSPEC-EF-DX-EARLY
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Sale price$955.19
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Rywire

Rywire engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Rywire lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Wiring for Early EF DX Builds

Enhance your 1988-1989 Honda Civic DX EF with the Rywire B/D-Series Mil-Spec Engine Harness. This specialized wiring solution is meticulously engineered for early model EF DX chassis, particularly for those undertaking B-series or D-series engine swaps. It provides a robust, high-performance electrical backbone, ensuring every engine sensor and component communicates flawlessly for optimal power delivery and reliability.

Unmatched Durability for Your Civic DX

Crafted to military specifications, this Rywire harness features high-temperature resistant wiring and sealed, durable connectors, designed to withstand the rigors of performance driving and harsh engine bay conditions. The integrated chassis-specific adapter ensures a straightforward, plug-and-play installation, eliminating the complexities often associated with engine swaps. Achieve a clean, professional look and superior electrical integrity, making this an essential upgrade for any serious Civic DX enthusiast.

  • Direct fit for 1988-1989 Honda Civic DX EF chassis
  • Compatible with Honda B-series and D-series engine swaps
  • Mil-spec (military specification) construction for extreme durability
  • High-temperature resistant, shielded wiring
  • Integrated chassis adapter for simplified installation
  • Improved signal integrity and electrical reliability
  • Enhances engine bay aesthetics and organization

Give your early EF DX the electrical foundation it deserves. Find your Rywire Mil-Spec Engine Harness at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Rywire

Rywire engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Rywire lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Wiring for Early EF DX Builds

Enhance your 1988-1989 Honda Civic DX EF with the Rywire B/D-Series Mil-Spec Engine Harness. This specialized wiring solution is meticulously engineered for early model EF DX chassis, particularly for those undertaking B-series or D-series engine swaps. It provides a robust, high-performance electrical backbone, ensuring every engine sensor and component communicates flawlessly for optimal power delivery and reliability.

Unmatched Durability for Your Civic DX

Crafted to military specifications, this Rywire harness features high-temperature resistant wiring and sealed, durable connectors, designed to withstand the rigors of performance driving and harsh engine bay conditions. The integrated chassis-specific adapter ensures a straightforward, plug-and-play installation, eliminating the complexities often associated with engine swaps. Achieve a clean, professional look and superior electrical integrity, making this an essential upgrade for any serious Civic DX enthusiast.

  • Direct fit for 1988-1989 Honda Civic DX EF chassis
  • Compatible with Honda B-series and D-series engine swaps
  • Mil-spec (military specification) construction for extreme durability
  • High-temperature resistant, shielded wiring
  • Integrated chassis adapter for simplified installation
  • Improved signal integrity and electrical reliability
  • Enhances engine bay aesthetics and organization

Give your early EF DX the electrical foundation it deserves. Find your Rywire Mil-Spec Engine Harness at GGCRACING.

Product Details

Product Description

About Rywire

Rywire engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Rywire lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Wiring for Early EF DX Builds

Enhance your 1988-1989 Honda Civic DX EF with the Rywire B/D-Series Mil-Spec Engine Harness. This specialized wiring solution is meticulously engineered for early model EF DX chassis, particularly for those undertaking B-series or D-series engine swaps. It provides a robust, high-performance electrical backbone, ensuring every engine sensor and component communicates flawlessly for optimal power delivery and reliability.

Unmatched Durability for Your Civic DX

Crafted to military specifications, this Rywire harness features high-temperature resistant wiring and sealed, durable connectors, designed to withstand the rigors of performance driving and harsh engine bay conditions. The integrated chassis-specific adapter ensures a straightforward, plug-and-play installation, eliminating the complexities often associated with engine swaps. Achieve a clean, professional look and superior electrical integrity, making this an essential upgrade for any serious Civic DX enthusiast.

  • Direct fit for 1988-1989 Honda Civic DX EF chassis
  • Compatible with Honda B-series and D-series engine swaps
  • Mil-spec (military specification) construction for extreme durability
  • High-temperature resistant, shielded wiring
  • Integrated chassis adapter for simplified installation
  • Improved signal integrity and electrical reliability
  • Enhances engine bay aesthetics and organization

Give your early EF DX the electrical foundation it deserves. Find your Rywire Mil-Spec Engine Harness at GGCRACING.

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