SKU: 48004-AK003 | UPC: 4957266548516
HKS CIRCLE EARTH SYSTEM TERMINAL SET – Fits Subaru Impreza WRX STI Nissan GT-R 350Z and More
The HKS Circle Earth System Terminal Set delivers enhanced electrical grounding through low-resistance connections. This universal terminal kit fits popular JDM performance vehicles like Subaru Impreza WRX STI Nissan GT-R and 350Z. It improves starter speed idling stability and throttle response by minimizing voltage drops across the system.
Key Features
- High-Conductivity Copper Terminals: Oxygen-free copper construction ensures minimal electrical resistance for reliable power delivery to ignition and ECU
- Pre-Assembled Wiring: Includes 0.8sq mm high-tension wire on four terminals ready for direct chassis battery and engine block attachment
- Voltage Drop Reduction: Cuts resistance by creating parallel ground paths leading to faster engine cranking and consistent performance
- Improved Signal Quality: Stabilizes electrical flow for precise ECU operation sharper throttle mapping and reduced electronic interference
- Durable Build: Nickel-plated for corrosion resistance withstands high-vibration environments in performance driving
Product Notes
- Inspect and clean all ground points prior to installation for optimal contact
- Use dielectric grease on connections to prevent oxidation over time
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Attach terminals to battery negative terminal engine block and two chassis grounds
- Compatible with M6 to M8 bolts no modifications needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2023 | Nissan | GT-R | Base Premium NISMO |
| 2004-2021 | Subaru | Impreza | WRX STI |
| 2003-2009 | Nissan | 350Z | Track Enthusiast Touring |
| 1999-2005 | Subaru | Impreza | WRX STI |
| 1999-2009 | Honda | S2000 | AP1 AP2 |
| 2004-2011 | Mazda | RX-8 | All |
Why Choose HKS?
- Proven in Super GT racing and JDM tuning since 1973
- Components built with precision Japanese manufacturing
- Engineered specifically for high-demand performance applications
Frequently Asked Questions
- Q: Will this fit my Subaru WRX STI or Nissan GT-R?
A: Yes it works universally with HKS Circle Earth kits and standard ground points on these models from 2003 onward - Q: What material are the terminals made from?
A: Oxygen-free copper alloy with nickel plating for superior conductivity and long-term durability against corrosion - Q: Is special warranty coverage included?
A: Covered under HKS standard defect warranty contact manufacturer for details on installation-related claims
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact protective box 5.9 x 4.1 x 1.6 inches
- Weight: 4.2 ounces
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