Open Monday - Friday 8am to 6pm MST Order Online 24/7
0 Items | $0.00 | Checkout | My Account
Vivid Racing Home Page
    SEARCH BY:  Wheel Size,    Tire Size,    Popular    Coupons
Why Vivid Racing
**New Products**CLEARANCE DEALSAir IntakesBig Brake KitsBrake PartsBody | Aero KitsECU TuningElectronicsBatteriesBattery MountsBoost ControlsBooster PedalsBrake ModulesCamerasCar Audio | VideoFuel ControlGPS Data BoxGroundingiPod/MP3/Aux InputsMiscellaneousRadar & Laser DetectorsSmartTOPTurbo TimersTuning ToolsEngine InternalsEngine UpgradesExhaust PartsExteriorFuel ComponentsGaugesInteriorPower PackagesPulleysRacing GearRadiator PartsRoll Bars | CagesSuspensionTransmissionTurbo | SuperchargerWheelsTiresUniversal & RepairVivid Racing GearVivid Motosports

Browse by Brand

Special Services

Coupon Codes Finance Your Parts Military Discounts Price Matching Product Request Form Wholesale Sales Service & Tuning Tell The Owners
Click to Ask a Pro!
Ask a Pro with our
Vivid Racing Support System
Stay Tuned In
Download the VR App
Put Wheels on Your Car!
The VR Wheel App
Test Fit Wheels on Your Car

Help & Information

Contact Us Company Profile Our Guarantees International Orders Extended Warranty Customer Gallery Installation Articles Product Reviews Privacy Policy Shipping & Returns Terms & Conditions Employment

Why Buy at VR

Contact Us

HKS Circle Earth System Honda Civic Si 02-03

  • HKS Circle Earth System Honda Civic Si 02-03
  Product Information
  Brand: HKS
  Model: 48004-AH003
Add to Wishlist
Product Information
HKS Circle Earth System Honda Civic Si 02-03

Circular Grounding System - By utilizing a 24 karat gold plated distribution block and multiple grounding points, improved idle and drivability are often obtained as the additional grounding points equalize resistance and voltage between various ground points. Each 8 gauge spiral twined cable is wrapped with signature HKS purple plastic to protect and add color to the Circle Earth System. Vehicle specific kits included pre-measured cable lengths and distribution blocks.
Select Available Options Then Click
Vivid Racing Customer Reviews:
TEXT_OF_5_STARS Posted on 12/13/2011 by Kevin C.
"Awesome customer service and great products. Customer support was always there and answered all of my questions."
TEXT_OF_5_STARS Posted on 05/06/2012 by James Rea
"My online ordering experience with VIVID RACING was very pleasant. If shipping of the product is as fast as it is to order, then I will be a very happy man soon."
TEXT_OF_5_STARS Posted on 11/09/2013 by Alan
"Friendly and helpful. Hope can deal more with you guy."
TEXT_OF_5_STARS Posted on 05/22/2014 by Scott
"Excellent service. Will use again."
TEXT_OF_5_STARS Posted on 08/30/2015 by Jeremy Janusz
"Vivid Racing treated me very well, and made sure I had my ECU tune quickly. The torque and power gains are amazing, and I will definitely be using Vivid Racing for and intake and downpipe later!"

View one of these Hot Items!
Vivid Racing Official Pit Crew Button Up Shirt Medium Black
Vivid Racing Official Pit Crew Button Up Shirt Medium Black

About Manufacturer: HKS
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.

Today the automotive aftermarket industry is filled with start-up companies following in HKS' footsteps. None however, can match the depth of engineering or manufacturing resources available to the talented, highly motivated and dedicated employees of HKS.

For over a quarter century HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.

Online Payment Service
Acura NSX Parts
Acura RSX Parts
Audi R8 Parts
Audi A4 Quattro Parts
BMW 335i Parts
BMW M3 M4 Parts
Cadillac CTS Parts
Chevrolet Camaro Parts
Chevrolet Corvette Parts
Chevrolet Tahoe Parts
Dodge Challenger Parts
Dodge Ram 2500 Parts
Ferrari 355 Parts
Ferrari 599 Parts
Fiat Abarth Parts
Ford Raptor Parts
Ford Focus ST Parts
Ford Mustang Parts
GMC 1500 Parts
Honda CR-Z Parts
Honda S2000 Parts
Hyundai Veloster Parts
Infiniti G35 Parts
Infiniti Q50 Parts
Jaguar XF Parts
Jeep Wrangler Parts
Kia Optima Parts
Lamborghini Gallardo Parts
Lamborghini Aventador Parts
Lexus IS350 Parts
Lexus RC-F Parts
Lincoln MKZ Parts
Lotus Elise Parts
Maserati GranTurismo Parts
Mazda RX-8 Parts
Mazda Miata Parts
McLaren 650 Parts
Mercedes AMG Parts
Mercedes CLS Parts
Mercedes C-Class Parts
Mitsubishi EVO Parts
Mini Cooper S Parts
Mini Clubman Parts
Mitsubishi Evolution Parts
Mitsubishi Lancer Parts
Nissan 240SX S13 Parts
Nissan 370Z Parts
Nissan GTR Parts
Porsche 991 Parts
Porsche 996 TT Parts
Porsche Boxster Parts
Range Rover Sport Parts
Range Rover Evoque Parts
Saab 9-2 Parts
Scion xB Parts
Scion FRS Parts
Smart Car Parts
Subaru Forester Parts
Subaru WRX STI Parts
Subaru BRZ Parts
Tesla Model S Parts
Toyota MR2 Parts
Toyota Supra Parts
Volkswagen GTI MK6 Parts
Volkswagen Beetle Parts
Volvo S40 Parts