1989 Honda Civic Si Fuel Systems

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    • (0 reviews)
      $437.49from $349.99 - $439.99
      Honda Civic Si 1989, Fuel Injector Kit by Skunk2®. Grams Performance is proud to offer the most innovative high-performance fuel injectors for today’s performance vehicles. Premium materials, advanced manufacturing techniques,...
      High-impedance design (no resistor box required)Cold-machined tips for high-precision operation
      # 45708776
    • (0 reviews)
      $181.76$145.41
      Honda Civic Si 1989, Adjustable Fuel Pressure Regulator by AEM®. Increasing fuel flow to your engine means more than just installing bigger injectors. This adjustable fuel pressure regulator can provide enough fuel for an engine...
      # 11141302
    • (0 reviews)
      $67.64from $54.11 - $55.97
      Honda Civic Si 1989, CommandFlo™ Fuel Pressure Modifier by B&M®. The CommandFlo is a billet aluminum fuel flow modifier that allows adjustment of the fuel flow rate to properly tune the air/fuel ratio. Ideal for use with free...
      CNC machined 6061-T6 billet aluminum caseWill fit most fuel rails with NR-1 regulator
      # 11107465
    • (0 reviews)
      $143.63$114.90
      Universal PowerAid™ Throttle Body Spacer by AIRAID®. Holley 4150-4160. Edelbrock Square Flange. OE Square Flange. The patented Helix Bore in the PowerAid™ Throttle Body Spacer causes a spinning action of the incoming air...
      # 2107523
    • (0 reviews)
      $143.63$114.90
      Universal PowerAid™ Throttle Body Spacer with Basic Hand Tools by AIRAID®. Holley 2300 Series. Motorcraft OE. The patented Helix Bore in the PowerAid™ Throttle Body Spacer causes a spinning action of the incoming air charge as...
      # 2107524
    • (0 reviews)
      $143.63$114.90
      Universal PowerAid™ Throttle Body Spacer with Basic Hand Tools by AIRAID®. Holley Spread Bore. Edelbrock Quadrajet. OE Spread Bore. The patented Helix Bore in the PowerAid™ Throttle Body Spacer causes a spinning action of the...
      # 2107525
    • (0 reviews)
      $437.49from $349.99 - $364.99
      Honda Civic Si 1989, Pro Series™ Throttle Body by Skunk2®. 90mm. Skunk2 is proud to introduce its Pro Series Throttle Body. Skunk2’s Pro Series Throttle Bodies are designed to be used with OEM intake manifolds and Pro Series...
      Compatible With OEM Throttle CableCNC-Forged 6061-T6 Billet Aluminum Construction
      # 45503342
    • (0 reviews)
      $47.38$37.90
      Honda Civic Si 1989, Fuel Pressure Gauge by B&M®. This useful tool allows for accurately measuring fuel pressure. Proper fuel pressure is critical at full throttle to prevent lean conditions. Recommended for use with CommandFlo for...
      Accurately measures fuel pressureWeighs only 0.5 lbs
      # 11099867
    • (0 reviews)
      $164.24$131.39
      Honda Civic Si 1989, Electric Fuel Pump by TYC®. Included: Strainer. This is an OES part that replaces factory OE # 17708-SK7-A36. Being an OES (Original Equipment Supplier) component, this part offers OE quality at a more...
      Same quality as OE for less moneyDesigned with the latest software
      # 12026670
    • (0 reviews)
      $18.74$14.99
      Honda Civic Si 1989, B2K™ Throttle Body Adapter by Skunk2®. 90mm Bore. Enthusiasts can now use the Skunk2 90mm throttle body with their K-series engine with our brand new TPS adapter.
      Great priceHigh quality
      # 45501410
    • (0 reviews)
      $74.99$59.99
      Honda Civic Si 1989, K2B™ Black Anodized Throttle Body Adapter by Skunk2®. 68mm Bore. Skunk2’s all-new K2B Throttle Body Adapter now offers H-series enthusiasts even more flexibility. Thanks to Skunk2’s 6061-T6 billet...
      Adapt any K-series intake manifold onto any H22A cylinder headAlso compatible with Skunk2 Pro Series Intake Manifolds
      # 45503356
    • (0 reviews)
      $206.25$165.00
      Honda Civic Si 1989, H2K™ Intake Manifold Adapter by Skunk2®. Skunk2’s all-new K2B Throttle Body Adapter now offers H-series enthusiasts even more flexibility. Thanks to Skunk2’s 6061-T6 billet aluminum adapter, any...
      Adapt any K-series intake manifold onto any H22A cylinder headAlso compatible with Skunk2 Pro Series Intake Manifolds
      # 45648186
    • (0 reviews)
      $224.99$179.99
      Honda Civic Si 1989, Ultra Series™ Race Composite Fuel Rail by Skunk2®. Supports Up To 1,200 HP, Internal Bore: 0.669". Developed specifically for the Ultra-Series race intake manifold, this fuel rail is built from top-quality...
      Designed specifically for the Ultra-Series Race intake manifoldSupports up to 1,200 horsepower
      # 45503345
    • (0 reviews)
      $162.49from $129.99 - $159.99
      Honda Civic Si B16A2 / B16A3 / K20A3 / K20Z3 / K24A1 / K24A4 / K24A8 1989, Ultra Series™ Race Intake Manifold Spacer by Skunk2®. The engineers at Skunk2 Racing have worked tirelessly to develop the next generation of high...
      Available in 3.5l (4.5l and 5.5l configuration require the purchase of optional spacers)Optional billet aluminum plenum spacers in 1l or 2l sizes
      # 45708783
    • (0 reviews)
      $10.15from $8.12 - $74.99
      Inline Fuel Filter by K&N®. Make sure only clean gas flows to your engine with this Inline Fuel Filter.
      # 308691
    • (0 reviews)
      $590.99from $472.79 - $719.49
      Honda Civic Si 1989, Nitrous System by ZEX™. Nitrous System Kit; Everything Necessary For Easy Installation.
      # 13909278
    • (0 reviews)
      $674.78$539.82
      Universal Fuel Injection Throttle Body Booster by AIRAID®. Fuel Injection Throttle Body Booster will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      # 36008697
    Guides & Articles
    A Fuel tank sending unit is a term for the mechanical assembly inside your fuel tank which measures the level of liquid in the tank, then reports its findings to the fuel gauge on your instrument cluster. All sending units contain a "float" piece which does just what it describes - floats atop the surface of the fuel. Many automakers design the float piece as an...
    Fuel injectors spray fuel directly into your engine’s cylinders during the intake stroke when a piston moves down to allow air and fuel to fill the cylinder chamber. When injectors are malfunctioning, leaking, or have failed completely, they will cause rough engine performance, poor idle, reduced power and economy, and exhaust that’s rich enough in unburned...
    The throttle controller will basically bypass the computer in the vehicle. It is designed to take the information right from the accelerator position sensor and compile it in a high speed controller circuit that compiles the signal sent from the Accelerator position sensors. With this controller you are able to program it to different options and the throttle...