GrimmSpeed Lightweight Battery Mount Kit
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GrimmSpeed Lightweight Battery Mount Kit - 2008-21 Subaru WRX, 2008-21 Subaru STI
GrimmSpeed has built a reputation for well engineered, functional parts that solve real problems for enthusiasts, and this kit is no exception. Designed to shed unnecessary weight from the engine bay, it's a straightforward way to lighten up your Subaru WRX or Subaru STI without touching a drill or hacksaw.
This listing covers the Subaru WRX (GE8/GH8 and VAG) and Subaru STI (GRF and VAB) built between 2008 and 2021. The kit is available in Red (SKU GRM121034) and Black (SKU GRM121028) powdercoat finishes, selectable via the variant options on this listing.
Note: This kit is designed for the Odyssey PC680 battery or similar sized unit. Battery not included.
Key Features
- Laser cut, CNC bent aluminium bracket
- Durable black or red texture powdercoat finish
- Three point mounting design for secure battery retention
- Reduces battery weight by approximately 55% compared to OEM
- Compatible with Odyssey PC680 battery (including metal case versions)
- No cutting or drilling required for installation
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year and chassis configuration are confirmed before ordering.
Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | WRX | GE8 | - |
| Subaru | WRX | GH8 | - |
| Subaru | WRX | GF8 | - |
| Subaru | WRX | GV8 | - |
| Subaru | WRX | GR8 | - |
| Subaru | WRX | VAG | - |
| Subaru | WRX STI | GRF | - |
| Subaru | WRX STI | GVF | - |
| Subaru | WRX STI | VAB | - |
Technical Specifications
| Spec | Value |
|---|---|
| Part Numbers | Red: GRM121034 / Black: GRM121028 |
| Material | Laser cut, CNC bent aluminium bracket |
| Finish | Black or red texture powdercoat |
| Mounting Points | 3 |
| OEM Battery Weight | 15.4 kg (34 lb) |
| Weight Removed | 8.6 kg (19 lb) |
| Weight Reduction | 55% lighter than OEM battery |
| Compatible Battery | Odyssey PC680 (or similar size battery) — battery not included |
| Battery Case Compatibility | Compatible with metal case for Odyssey PC680 |
No instructions available for this product.

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