GrimmSpeed Equal Length Header
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GrimmSpeed Equal Length Header - Subaru WRX (VBH)
GrimmSpeed built its name on extracting real gains from Subaru's boxer platform, and this equal length header (SKU GRM113401) is a ground up redesign of the factory manifold for the Subaru WRX. It replaces the restrictive OEM unit with a fully stainless steel design engineered around the FA24's twin scroll turbo for smoother, more consistent flow.
This listing covers the 2022+ Subaru WRX (VBH), all trims. It's a direct bolt-on that retains factory skid plate clearance and doesn't require a tune.
Key Features
- 304 stainless steel construction throughout, including flanges, tubing and collector
- CNC bent equal length runners with under 1% variance between longest and shortest
- Cast merge collector for low restriction, smooth flow
- 12mm (1/2 in) thick CNC cut flanges and 14 gauge tubing
- No tune required, direct bolt-on installation
- Maintains factory ground clearance, no skid plate spacers needed
- Gaskets and hardware included
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your WRX's model year and trim before ordering.
Not sure if this header suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | Liberty | FA24DIT | |
| Subaru | Outback | FA24DIT | |
| Subaru | WRX | VBH | FA24 |
Technical Specifications
| Spec | Value |
|---|---|
| Material | 304 Stainless Steel (flanges, tubing, collector and badge) |
| Flange Thickness | 12.7 mm (1/2 in), CNC cut and faced |
| Tubing Diameter | 44.5 mm (1.75 in) |
| Tubing Gauge | 14 Gauge (14ga) stainless steel |
| Runner Configuration | True equal length, CNC bent and trimmed as single piece, less than 1% variance between longest and shortest runner |
| Collector Type | Cast merge collector, low restriction inlet and outlet |
| Weld Points | Flanges welded on both inside and outside for improved flow transition |
| Tune Required | No — direct bolt-on installation |
| Ground Clearance | No loss — clears factory skid plate without spacers |
| Included Hardware | Gaskets and hardware included |
No instructions available for this product.
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