GM Vehicle Logo - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.
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Quality GM Wiring Harness for  EFI Engine,
Air Intake Systems & Other Performance Parts
Located in Jacksonville, Arkansas
Serving the Nation          


    Wiring Harness - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

     WIRING HARNESS
     Fuel Injected Wiring Harness ( EFI )

  • Most GM Fuel Injected vehicles
  • 100% Handmade Harnesses
  • New weather-pack and Metri-pack plugs
  • TXL wire
  • Heavy gauge heat shrink tubing
  • All harnesses checked and labeled before shipping
  • Instructions Included
  • Easy to install

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     AIRMAX
     Air Intakes System

  • Up to 20 more HP
  • 40% more air flow than O.E.M
  • Better Fuel Mileage
  • More Torque
  • Easy to install
  • Featuring K&N Filters
  • All steel construction
  • With a vortex-like spin

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Air Intake System - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

     HELIX
     Throttle Body Spacer

  • Up to 22 hp gain *
  • Up to 4 miles per gallon gain *
  • Up to 25 ft lb gain in Torque *
  • Easy intstallation
  • Performance benefits across entire power band *
  • Environmentally friendly with cleaner fuel burn
  • Fifty States Legal (C.A.R.B #D516-2)

     

 

* Performance level may vary among applications and driving style
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Throttle Body Spacer - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

        V MAX
      Manifold Spacer

  • 31% More air volume in the intake manifold
  • 21 horsepower
  • 21 lb/ft of torque
  • Complete instructions
  • All hardware to make complete installation
Manifold Spacer - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

       Spacer~Max
       Valve Cover Risers

  • Helps stock value cover
      clear aftermarket rockers
  • CNC machined
  • Billet Aluminum
  • Both 1/2" & 1" risers
  • Easy bolt on installion
  • All hardware to make
      complete installion
Valve Cover Risers - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

     COIL COVERS
     Ignition Coil Covers

  • Engine Dress-up kits
  • Billet polish aluminum cover
  • Installation is quick
  • Cover up the uncovered ignition coils to dress  them up

 

 

 

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Ignition Coil Cover - Contact us or in Jacksonville, Arkansas, for GM vehicle engine wiring harness, air intake system, throttle body spacer, and other performance parts.

Contact us in Jacksonville, Arkansas, for GM vehicle engine
wiring harness, air intake system, throttle body spacer,
computer programming and other performance parts.
 
Hours of Operation:
Monday–Sunday, 8:00 a.m.–5:00 p.m.

Helpful Links:
www.diy-efi.org/gmecm

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Home | Wiring Harness | Computer Programming | Air Intake System | Throttle Body Spacer | Manifold Spacer | Valve Cover Riser | Coil Covers | Online Store | Location | Contact Us | Links

Superior Harness Company
3 White Fox Cove
Jacksonville, AR 72076-2641
Toll Free: (866) 402-9687
Fax: (501) 982-0308